This readme.txt file was generated on 20250609 by Jimmy J. Wood Recommended citation for the data: Wood, J. J., Svien, L., Christianson, D. & Claas, L. Historical stream and valley sedimentation survey data for the Whitewater River Valley, Minnesota, United States (1855–1994). University of Minnesota Twin Cities Data Repository for U of M (2025). ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset Historical stream and valley sedimentation survey data for the Whitewater River Valley, Minnesota, United States (1855–1994) 2. Author Information Principal Investigator Contact Information Name: Jimmy J. Wood Institution: University of Minnesota Twin Cities, Saint Anthony Falls Laboratory Address: 2 SE 3rd Ave, Minneapolis, MN 55414 Email: jimmyjwood24@gmail.com ORCID: 0009-0009-7263-433X 3. Date published or finalized for release: 20250520 4. Date of data collection (single date, range, approximate date): 1939—2025. 5. Geographic location of data collection (where was data collected?): Whitewater River Watershed in Olmsted, Wabasha, and Winona counties in southeastern Minnesota, United States. 6. Information about funding sources that supported the collection of the data: A. Legislative-Citizen Commission on Minnesota Resources (LCCMR) Environment and Natural Resources Trust Fund (ENTRF) grant 2022-163. B. National Science Foundation (NSF) grant 1944782. C. University of Minnesota Twin Cities, Graduate School Diversity Office Summer Institute. D. University of Minnesota Twin Cities, College of Science & Engineering Inclusion Fellowship. 7. Overview of the data (abstract): Between the late 1930s and mid-1960s, Soil Conservation Service (SCS) and United States Geological Survey (USGS) personnel established 107 floodplain survey transects in the Whitewater River Valley (MN) to investigate stream and valley sedimentation conditions throughout the basin. These transects were the basis for auger boring and optical elevation surveys conducted by field personnel. The former was performed to measure floodplain legacy sediment thickness, or the thickness of the sediment deposited since the widespread introduction of Euro-American agriculture around 1855. The latter was performed to capture the continuous geometry of the river valley via elevation measurements at discrete points along the transect. Since the late 1930s, multiple government agencies have sampled these transects for multiple sedimentation surveys yielding a near 140-year record (1855-1994) of river valley change that has not been available to the public. The relevant survey periods include 1939–1941 (SCS), 1964–1968 (USGS), 1975 (SCS), 1978 (SCS), and 1993–1995 (SCS–Natural Resources Conservation Service [NRCS]). Data preservation work conducted in 2008–2014 (NRCS-Pennsylvania State University) focused on a GNSS survey of transect monuments (markers) and continued work in 2021–2025 (University of Minnesota Twin Cities) focused on compiling all the previous data since 1939 for publication and calculating elevation change rates across the basin. We have compiled the historical sedimentation survey data pertaining to these transects and distilled it into eight files: (A) transects, (B) monuments, (C) boring surveys, (D) elevation surveys, (E) monument coordinates, (F) elevation change rates, (G) elevation change rate calculation exception zones, and (H) elevation change rate statistics. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: None. 2. Links to publications that cite or use the data: A. Wood, J. J. Buried in Bluff country: Stream and valley sedimentation in the Whitewater River Valley, Minnesota (USA). Master’s thesis (University of Minnesota Twin Cities University Digital Conservancy, https://hdl.handle.net/11299/259610 2023). B. Wood, J., Wickert, A., Larson, P., Ostermann, K., Cervantes de Blois, C., Running, G., Faulkner, D., Svien, L., Christianson, D., & Thompson, B. Buried in Bluff Country: Reshaping Southeastern Minnesota’s Whitewater River Valley (USA) Through Catastrophe, Conservation, and Climate Change. Poster presentation (American Geophysical Union Fall Meeting, 12-16 Dec., Chicago, IL., https://agu.confex.com/agu/fm22/meetingapp.cgi/Paper/1118343 2021). C. Svien, L. The Restoration Of A Historical Sediment Study And The Use Of Lidar In the Determination Of Elevations In The Whitewater River Valley. Master’s thesis (Pennsylvania State University, https://handbook.geospatial.psu.edu/sites/default/files/capstone/svien_FinalProject_20120610.pdf 2012). 3. Was data derived from another source? Yes, most of it. Most of this data was collected by field surveyors during stream and valley sedimentation surveys began by Dr. Stafford C. Happ of the Soil Conservation Service (SCS) in the late 1930s. These surveys were conducted in 1939–1941, 1964–1968, 1975, 1978, and 1993–1995. The SCS, and later, the Natural Resources Conservation Service (NRCS), conducted the 1939–1941 (1939), 1975, 1978, and 1993–1995 (1994) surveys. The 1964–1968 (1965) survey was mainly conducted by the United States Geological Survey (USGS). Dr. Happ led both the 1939 and 1965 efforts. The data described in this document was derived directly from archival materials (field notes, correspondence, reports, etc.) pertaining to these surveys. The archival materials were provided to us by NRCS personnel which we supplemented with other materials found at the University of Wisconsin–La Crosse Murphy Library's "Stanley Trimble Papers" Special Collection. NRCS personnel and Svien conducted the GNSS coordinate survey in 2008–2014. Svien utilized some of the historical sedimentation survey data in his study cited previously, through which he also originally released most of the coordinate data we share here. Our research concludes that the historical sedimentation survey data itself has never been published, it has only been referenced in internal governmental reports and other documents that are not available online. 4. Terms of Use: Data Repository for the U of Minnesota (DRUM) By using these files, users agree to the Terms of Use. https://conservancy.umn.edu/pages/policies/#drum-terms-of-use --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: WRV_MN_1939_1994_sedimentation_transects.csv Short description: Transect data and metadata. B. Filename: WRV_MN_1939_2014_sedimentation_monuments.csv Short description: Transect monument, or other marker, data and metadata. Provides a breakdown of transect monumentation history from data collected by field surveyors between 1939 and 2014. C. Filename: WRV_MN_1939_1965_sedimentation_borings.csv Short description: Transect auger boring data and metadata. Provides legacy sediment (LS) thickness data collected by field surveyors in 1939 and 1965. D. Filename: WRV_MN_1855_1994_sedimentation_elevations.csv Short description: Transect elevation (surface profile) data and metadata collected by field surveyors between 1939 and 1994. Some data was calculated by Wood in 2024. E. Filename: WRV_MN_2008_2014_sedimentation_coordinates.csv Short description: Transect monument, or other marker, GNSS coordinate data and metadata collected by field surveyors led by Christianson and Svien between 2008 and 2014. Some data was calculated by Wood in 2025. F. Filename: WRV_MN_1855_1994_sedimentation_rates.csv Short description: Transect elevation change rates calculated by Wood in 2025 for the time periods of 1855–1939, 1939–1965, 1965–1994, 1855–1965, 1965–1975, 1975–1978, and 1978–1994. G. Filename: WRV_MN_1855_1994_sedimentation_exceptions.csv Short description: Transect elevation change rates calculation exceptions set by Wood in 2025. The exception is a zone along the transect between two measurement stations where elevation change rates are not calculated. H. Filename: WRV_MN_1855_1994_sedimentation_statistics.csv Short description: Statistical hypothesis test results for tests conducted by Wood in 2025 to gauge whether sedimentation rates between 1855–1939, 1939–1965, and 1965–1994, differed. 2. Relationship between files: Files B–G all pertain to the list of transects provided in file A. File F provides the coordinates for the "2008–2014" survey era records of file B. File G rates and uncertainties were calculated directly from the data in files C–E. File G highlights transect sections outlined in file D and to exclude them from the elevation change rates calculated for file F. The statistical hypothesis tests indicated in file H utilized the rate data provided in file F. -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: A. Filename: WRV_MN_1939_1994_sedimentation_transects.csv Description: Transect azimuth (°) was measured with QGIS's (3.40.0-Bratislava) built-in "Measure Bearing" tool. All other fields are metadata derived from the historical documentation or newly formulated for this data product. B. Filename: WRV_MN_1939_2014_sedimentation_monuments.csv Description: Fields O–R (monument/marker measurement stations and elevations) and off transect distance were measured by field surveyors through conventional optical elevation survey procedures. All other fields are metadata derived from the historical documentation or newly formulated for this data product. C. Filename: WRV_MN_1939_1965_sedimentation_borings.csv Description: Fields I–N (boring measurement stations, sediment thicknesses, and depths) were measured by field surveyors through conventional auger boring procedures. All other fields are metadata derived from the historical documentation or newly formulated for this data product. D. Filename: WRV_MN_1855_1994_sedimentation_elevations.csv Description: Most of fields K–M, and O (elevation measurement stations, elevations, and elevation uncertainties) were measured by field surveyors through conventional optical elevation survey procedures. Wood calculated all elevation data with a profile source of "Borings" and 1855 profile year following methods outlined in Happ, S. C. Instructions For Stream And Valley Sedimentation Surveys. Technical Letter Sed-3 (United States Department of Agriculture Soil Conservation Service, 1939). These methods entail subtracting the boring legacy sediment (LS) thickness from a coincident surface elevation height to get the pre-Euro-American floodplain elevation which we label 1855. Wood modified this procedure to also calculate 1939 profile year elevations with boring data. In this case Wood added the 1939 LS thicknesses to 1855 elevations, where applicable. Wood also raised local elevations to absolute National Geodetic Vertical Datum of 1929 (NGVD 29) elevations, where applicable. Where a survey monument was surveyed in both a local and the NGVD 29 datum, Wood added their difference to the rest of the elevation measurements for that transect, and thus provided a datum adjustment. Wood calculated elevation uncertainties for these new data in fields P and G through standard propagation of errors procedures. All other fields are metadata derived from the historical documentation or newly formulated for this data product. E. Filename: WRV_MN_2008_2014_sedimentation_coordinates.csv Description: Fields H and I (x and y coordinates) were mostly measured by Christianson and Svien in the field. Wood created two records via conventional coordinate geometry (COGO) procedures. All other fields are metadata derived from the historical documentation or newly formulated for this data product. F. Filename: WRV_MN_1855_1994_sedimentation_rates.csv Description: All mean rates and uncertainty fields were calculated by Wood with self-developed Python (3.10.4) programs. Mean rates for a time interval were calculated from the elevation data pertaining to that time interval or directly from boring data. With elevation data, the two surveys were first linearly interpolated to have the same station values. The elevations at each shared station were then subtracted to calculate the elevation change which were then averaged. This average value was converted into a rate by dividing by the length of the time interval. If this method was not applicable to the transect or transect surveys, rates were calculated directly from boring data by averaging the legacy sediment (LS) thickness across all boreholes. Wood calculated elevation uncertainties through standard propagation of errors procedures. All other fields are metadata derived from the historical documentation or newly formulated for this data product. G. Filename: WRV_MN_1855_1994_sedimentation_exceptions.csv Description: Fields A–I (elevation measurement stations 1 and 2) were taken directly from the elevation data. Field J was specifically formulated for this data product. H. Filename: WRV_MN_1855_1994_sedimentation_statistics.csv Description: Fields E and F (test statistics and P-values) were calculated via statistical tests ran in a self-developed Python code. Wood desired to test the null hypothesis that mean elevation change rates were the same between time intervals (1855–1939, 1939–1965, 1965–1994) agains the alternate hypothesis that mean elevation change rates were not the same between intervals. Wood conducted the Kolmogorov-Smirnov and Brown-Forsythe tests to determine the appropriate procedure (parametric vs nonparametric). The following results, along with an invocation of the Central Limit Theorem, pointed towards the parametric One-Way ANOVA (analysis of variance) omnibus test followed by Tukey's HSD (honestly significant difference) tests. All other fields are metadata specifically formulated for this data product. 2. Methods for processing the data: A. Field data and metadata for transects, monuments, borings, elevations, and coordinates entered into spreadsheet by three people. B. Verified entered data through visual check methods by visually comparing the entered data to their source. Corrections applied where necessary. C. Verified calculated elevation data through double entry methods by manually calculating them again, independent of the original calculation. Corrections applied where necessary. D. Verified all elevation data through a second round of visual check by plotting surface profiles in search of obviously erroneous points. 3. Instrument- or software-specific information needed to interpret the data: Conventional spreadsheet application. Wood recommends that any analysis be carried out in a programming environment. 4. Standards and calibration information, if appropriate: n/a. 5. Environmental/experimental conditions: n/a. 6. Describe any quality-assurance procedures performed on the data: A. Spreadsheet data entry facilitated through conventional data validation and conditional formatting features to highlight values that were not possible for the given field. B. Spatial exclusion zones were established on transects prior to rate calculations for areas where a rate calculation would produce an unreliable result. 7. People involved with sample collection, processing, analysis and/or submission: 1939–1941: Stafford C. Happ, Witzgall, Douglas, Sandoski, Hauser, Langoski, and Earl H. Moser Jr. 1964–1968: Stafford C. Happ, Duane Wicklund, Ziemer, Neumann, Ludwig, Sword, Harry Schuldt, Norm Andreson, Spring, Moser, Heaser, and Nephews. 1975: John R. Micheel and Schassow. 1978: J. Ayres and John R. Micheel. 1993–1995: Doug Christianson, Robert Bird, Bill Lorenzen, John R. Micheel, T. J. Alvarez, L. Stephens, J. A. Goplen, S. M. Becker, Brick, D. R. Jones, and M. K. 2008–2014: Doug Christianson, Lawrence Svien, Steve Erickson, and Mark Kanable. 2021–2025 (this data compilation): Jimmy J. Wood, Lauren Claas, and Taylor Jewel. The previous is a non-exhaustive list of relevant individuals because we assume information has been lost over the many decades since this data was first collected. --------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1939_1994_sedimentation_transects.csv --------------------------------------------------------------------------- 1. Number of variables: 12 2. Number of cases/rows: 107 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: TId39 Description: Transect ID following original naming convention set in 1939. Transect IDs identified the stream they crossed with an abbreviated prefix: WW (Whitewater [Main Stem and Middle Fork]), NF (North Fork), SF (South Fork), T (Trout Creek), B (Beaver Creek), L (Logan Creek), and D (Dry Creek). Transect IDs also identified the transect's upstream distance from some reference point (mile 0) with a numeral–letter suffix. For example, transect SF-1 is on the South Fork and should be about 1 mi from its mile 0 reference point, its confluence with the Main Stem. C. Name: TId24 Description: Transect ID following modified naming convention set in 2024. The abbreviated prefix has been modified from the previous convention: MS (Main Stem), MF (Middle Fork), NF (North Fork), SF (South Fork), TC (Trout Creek), BC (Beaver Creek), LC (Logan Creek), and DC (Dry Creek). D. Name: TStatus Description: Transect status. Values: Active: Transect has been continuously sampled throughout the basin-scale surveys. Retired: Transect sampling was, at some point, discontinued during the basin-scale surveys. E. Name: TAzmthD Description: Transect azimuth (°). Values: 0–360° F. Name: TMods Description: Transect modifications. Indicates if, when, and how a transects geometry or data was modified. G. Name: DtAvl55 Description: Data availability for 1855. Indicates what data was created for this year. Values: E^* E: Elevation data ^*: Elevation data derived from boring data H. Name: DtAvl39 Description: Data availability for 1939. Indicates what data was surveyed or created for this year. Values: B, E, E^* B: Boring data E: Elevation data ^*: Elevation data derived from boring data I. Name: DtAvl65 Description: Data availability for 1965. Indicates what data was surveyed for this year. A number prefix (i.e., 2) indicates the number of datasets that exist for the data type letter identifier that follows. Values: B, E, E^* B: Boring data E: Elevation data ^*: Elevation data derived from boring data J. Name: DtAvl75 Description: Data availability for 1975. Indicates what data was surveyed for this year. A number prefix (i.e., 2) indicates the number of datasets that exist for the data type letter identifier that follows. Values: E E: Elevation data K. Name: DtAvl78 Description: Data availability for 1978. Indicates what data was surveyed for this year. A number prefix (i.e., 2) indicates the number of datasets that exist for the data type letter identifier that follows. Values: E E: Elevation data L. Name: DtAvl94 Description: Data availability for 1994. Indicates what data was surveyed for this year. A number prefix (i.e., 2) indicates the number of datasets that exist for the data type letter identifier that follows. Values: E E: Elevation data --------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1939_2014_sedimentation_monuments.csv --------------------------------------------------------------------------- 1. Number of variables: 21 2. Number of cases/rows: 662 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: MNum Description: Monument/marker number (#). Unique data ID used for programming purposes. Monument/marker number assignment occurred sequentially from transect 1 to 107, where applicable. For each transect, the right monument/marker number was assigned, then the left. Values: 1–188 C. Name: MId24 Description: Monument/marker ID following modified naming convention set in 2024. Monument/marker IDs identified the transect they marked with the transect ID (2024) and the side of the transect they marked with "L" or "R" for left and right, respectively. For example, monument SF-1-L is on the left side of transect SF-1. D. Name: MIdSrv Description: Monument/marker ID following original naming convention set in 1939 in 1965. Monument/marker IDs identified the transect they marked with the transect ID (1939) The side of the transect they marked was designated with "N" (North), "S" (South), "E" (East), or "W" (West), in 1939; and "L" (Left), "R" (Right), "A", "B", or "LL", in 1965. Monument/markers labeled "A", "B", or "LL" seem isolated to replacement monument/markers. Monument SF-1-L in 2024 is equivalent to SF-1-W. This field is recorded as a way to help track monument/markers through time in the historical documents. In the field notes, the label used to denote a monument/marker may change between surveys but looking at their stations and elevations will show you their equivalence. E. Name: SrvEra Description: Survey era (YYYY or YYYY—YYYY). Indicates the survey period the monument/marker data pertains to. Values: 1939—1941 1964—1968 1975 1978 1993–1995 F. Name: MDsc Description: Monument/marker description. G. Name: MSrvType Description: Monument/marker survey type. Indicates the purpose of the monument/marker as it pertains to elevation survey activities. Values: PBM: Permanent Bench Mark TBM: Temporary Bench Mark Survey stake H. Name: MEstType Description: Monument/marker establishment type. Provides insight into where the monument/marker fits into overall transect monument/marker chronology. Values: Temporary: A TBM or survey stake. Original: The first PBM established. Replacement: Any PBM established specifically to replace an unrecovered "Original" PBM. Not recorded: The data is not available. I. Name: MEstYr Description: Monument/marker establishment year (YYYY or YYYY–YYYY). J. Name: MEstMn Description: Monument/marker establishment month (MM or MM–MM). K. Name: MEstDy Description: Monument/marker establishment day (DD). L. Name: MRecStatus Description: Monument/marker recovery status. Provides insight into where the monument/marker fits into overall transect monument/marker chronology. Values: Established: The monument/marker is set during survey. Recovered: The monument/marker is located during survey. Unrecovered: The monument/marker is not located during survey. Unknown: The data is not available. M. Name: MStbStatus Description: Monument/marker stability status. Provides insight into where the monument/marker fits into overall transect monument/marker chronology and indicates its use as a vertical (elevation) reference or benchmark. Values: Stable: The monument/marker elevation is assumed to be stable. Disturbed: The monument/marker or surrounding substrate exhibit evidence of disturbance and the monument/marker's elevation is not assumed to be stable. Destroyed: The monument/marker has been removed from the ground and its elevation is not stable. Unknown: The data is not available. N. Name: MGndSttnFt Description: Monument/marker ground elevation station (ft). Indicates the location of the elevation measurement directly adjacent to the monument/marker on the transect. O. Name: MTopSttnFt Description: Monument/marker top elevation station (ft). Indicates the location of the elevation measurement directly on top of the monument/marker. P. Name: MGndEFt Description: Monument/marker ground elevation (ft). Q. Name: MTopEFt Description: Monument/marker top elevation (ft). R. Name: MClsErFt Description: Monument/marker closure error (ft). Indicates the elevation error (closure error) measured for the monument/marker when it was first established. S. Name: MOffT Description: Monument/marker off transect. Indicates whether the monument/marker is located off of the surveyed transect. Values: TRUE FALSE T. Name: MOffTDisFt Description: Monument/marker off transect distance (ft). Indicates the distance of an offset monument/marker from the surveyed transect. U. Name: MOffTDir Description: Monument/marker off transect direction. Indicates the direction an offset monument/marker is displaced from the surveyed transect. Values: Upstream Downstream South East West ------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1939_1965_sedimentation_borings.csv ------------------------------------------------------------------------- 1. Number of variables: 15 2. Number of cases/rows: 1,988 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: BSrvNum Description: Boring survey number (#). Nonunique data ID used for programming purposes. Boring survey number assignment started with the first survey through to the most recent. C. Name: TId24 Description: Transect ID following modified naming convention set in 2024. The abbreviated prefix has been modified from the previous convention: MS (Main Stem), MF (Middle Fork), NF (North Fork), SF (South Fork), TC (Trout Creek), BC (Beaver Creek), LC (Logan Creek), and DC (Dry Creek). D. Name: SrvEra Description: Survey era (YYYY or YYYY—YYYY). Indicates the survey period the boring data was collected. Values: 1939—1941 1964—1968 E. Name: TLine Description: Transect line. Indicates whether the original transect trace, established in 1939 or 1965, or a replacement trace, established when and if the transect was modified (i.e., relocated), was bored. Values: Original Replacement F. Name: BSrvYr Description: Boring survey year (YYYY or YYYY–YYYY). G. Name: BSrvMn Description: Boring survey month (MM). H. Name: BSrvDay Description: Boring survey day (DD). I. Name: BSttnFt Description: Boring measurement station (ft). Indicates the transect location of the boring. J. Name: ESttnFt Description: Elevation measurement station (ft). Indicates the transect location of the elevation measurement, measured during the elevation survey, that is equivalent to the boring station. The boring and elevation stations are usually different values because they were measured via different methods but are reasonably assumed to be at the same point. K. Name: SThickIn Description: Legacy sediment thickness (in). L. Name: SThickFt Description: Legacy sediment thickness (ft). M. Name: BDepthIn Description: Borehole depth (in). N. Name: BDepthFt Description: Borehole depth (ft). O. Name: SttnDsc Description: Station description. Provides any station notes related to sampling, topography, infrastructure, etc. ---------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1855_1994_sedimentation_elevations.csv ---------------------------------------------------------------------------- 1. Number of variables: 17 2. Number of cases/rows: 13,721 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: ESrvNum Description: Elevation survey number (#). Nonunique data ID used for programming purposes. Elevation survey number assignment started with the first survey through to the most recent. C. Name: TId24 Description: Transect ID following modified naming convention set in 2024. The abbreviated prefix has been modified from the previous convention: MS (Main Stem), MF (Middle Fork), NF (North Fork), SF (South Fork), TC (Trout Creek), BC (Beaver Creek), LC (Logan Creek), and DC (Dry Creek). D. Name: SrvEra Description: Survey era (YYYY or YYYY—YYYY). Indicates the survey period the data indicated in "PSource" was collected. Values: 1939—1941 1964—1968 1975 1978 1993–1995 E. Name: TLine Description: Transect line. Indicates whether elevation data was surveyed/calculated for the original transect trace, established in 1939, or a replacement trace, established when and if the transect was modified (i.e., relocated). Values: Original Replacement F. Name: PYr Description: Profile year (YYYY). Indicates the year the surface profile (elevation data) represents. Values: 1855 1939: 1939–1941 1965: 1964–1965 1975 1978 1994: 1993–1994 G. Name: PSource Description: Profile source. Indicates whether the surface profile (elevation data) was surveyed directly in the field or indirectly derieved from boring data. Values: Elevations: Surveyed in the field. Borings: Calculated from borings by taking subtracting the legacy sediment (LS) thickness at a station from the ground elevation at that station. H. Name: ESrvYr Description: Elevation survey year (YYYY or YYYY–YYYY). Indicates the year the data was surveyed if "PSource" is "Elevations" or the year the data was calculated if "PSource" is "Borings". I. Name: ESrvMn Description: Elevation survey month (MM or MM–MM). Indicates the month the data was surveyed if "PSource" is "Elevations" or the year the data was calculated if "PSource" is "Borings". J. Name: ESrvDay Description: Elevation survey day (DD). Indicates the day the data was surveyed if "PSource" is "Elevations" or the year the data was calculated if "PSource" is "Borings". K. Name: ESttnFt Description: Elevation measurement station (ft). L. Name: E1Ft Description: Elevation 1 (ft). The primary elevation measurement at "ESttnFt". This value is either an NGVD 29 or local elevation. Where both values are available, the NGVD 29 value is designated "elevation 1". For some transects, local elevations were raised to NGVD 29 when a local and NGVD 29 elevation was available for a monument. Assuming the monument height is stable, the difference between its local and NGVD 29 elevations was added to all elevations for that survey. M. Name: E2Ft Description: Elevation 2 (ft). A secondary elevation measurement at "ESttnFt". Where an NGVD 29 and local elevation values are available, the local value is designated "elevation 2". The existence of an "elevation 1" and "elevation 2" at one station indicates that the original surveyors, or later data compilers, converted local elevations to NGVD 29 elevations. N. Name: SttnDsc Description: Station description. Provides any station notes related to sampling, topography, infrastructure, etc. Boring positions are also noted. O. Name: SrvClsErFt Description: Surveyed closure error (ft). Indicates the uncertainty value for the elevation measurement measured in the field by surveyors. P. Name: PrClsEr1Ft Description: Propagated closure error 1 (ft). Indicates the uncertainty value for elevation measurements for 1855 and 1939 calculated elevation datasets. The value is propagated from the surveyed elevation dataset used in the calculation of the 1855 or 1939 elevation dataset. For example, the MF-20 1965 surveyed closure error was 0.007 ft. Because that elevation data was used to calculate the MF-20 1855 surface profile, the 1855 propagated closure error was also 0.007 ft. We do not consider any propagated error from the soil auger measurement in this calculation. Q. Name: PrClsEr2Ft Description: Propagated closure error 2 (ft). Indicates the uncertainty value for elevation measurements from any profile year that were raised from a local datum to NGVD 29. The value is propagated from the NGVD 29 and local surveyed elevation datasets used in the calculation of the raised elevation dataset. For example, SF-4 local elevations were raised to NGVD 29 after it was surveyed in NGVD 29 in 1994. The 1965 local and 1994 NGVD 29 surveyed closure errors were -0.01 ft and 0.000 ft, respectively. Because these elevation datasets were used to calculate the 1965 NGVD 29 elevations, their propagated closure error was -0.01 + 0.000 or -0.01 ft. R. Name: VDatum Description: Vertical datum. Indicates the vertical datum of "elevation 1". All "elevation 2" data, where applicable, is in a local datum. Values: NGVD 29: National Geodetic Vertical Datum of 1929 Local ----------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_2008_2014_sedimentation_coordinates.csv ----------------------------------------------------------------------------- 1. Number of variables: 15 2. Number of cases/rows: 190 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: MNum Description: Monument/marker number (#). Unique data ID used for programming purposes. Monument/marker number assignment occurred sequentially from transect 1 to 107, where applicable. For each transect, the right monument/marker number was assigned, then the left. Values: 1–188 C. Name: MId24 Description: Monument/marker ID following modified naming convention set in 2024. Monument/marker IDs identified the transect they marked with the transect ID (2024) and the side of the transect they marked with "L" or "R" for left and right, respectively. For example, monument SF-1-L is on the left side of transect SF-1. D. Name: SrvEra Description: Survey era (YYYY or YYYY—YYYY). Indicates the survey period the coordinate data was collected. Values: 2008–2014 E. Name: GSrvYr Description: GNSS survey year (YYYY or YYYY–YYYY). F. Name: GSrvMn Description: GNSS survey month (MM). G. Name: GSrvDay Description: GNSS survey day (DD). H. Name: EastingM Description: Easting coordinate (m). Indicates the monument's x cartesian coordinate. I. Name: NorthingM Description: Northing coordinate (m). Indicates the monument's y cartesian coordinate. J. Name: GLocType Description: GNSS location type. Indicates the location in relation to the monument the coordinate was measured. Values: Marker top Ground at marker Approximate: The monument was unrecovered and the location is based on the field notes. K. Name: GRcvr Description: GNSS receiver. Indicates the equipment used to measure the coordinate. Values: Garmin GPSMAP 76 Garmin Oregon 650t Trimble GeoXT 2008 Trimble GeoXT 6000 Trimble R8 COGO digitized in QGIS (3.40.0-Bratislava) L. Name: GRcvrGrade Description: GNSS receiver grade. Indicates the receiver grade, an indication of its accuracy, precision, and purpose. Where the GNSS receiver used to capture a coordinate is not well constrained a range of grades is appropriate (i.e., recreation–mapping). Values: Recreation Mapping Survey Recreation–mapping M. Name: GXYAccM Description: GNSS coordinate accuracy (m). Indicates the estimated uncertainty for coordinate measurements in the xy plane. Uncertainty is estimated from the receiver specifications and widely accepted values tied to the coordinate correction methods used. Values: 0.25–5 N. Name: CRS Description: Coordinate reference system (CRS). Values: NAD83 / URM zone 15N O. Name: CRS_EPSG Description: Coordinate reference system (CRS) European Petroleum Survey Group (EPSG) identifier. Values: 26915 ----------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1855_1994_sedimentation_rates.csv ----------------------------------------------------------------------- 1. Number of variables: 24 2. Number of cases/rows: 116 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: TId24 Description: Transect ID following modified naming convention set in 2024. The abbreviated prefix has been modified from the previous convention: MS (Main Stem), MF (Middle Fork), NF (North Fork), SF (South Fork), TC (Trout Creek), BC (Beaver Creek), LC (Logan Creek), and DC (Dry Creek). C. Name: TLine Description: Transect line. Indicates whether the rate is for the original transect trace, established in 1939 or 1965, or a replacement trace, established when and if the transect was modified (i.e., relocated). Values: Original Replacement D. Name: R55_39CmY Description: Mean elevation change rate for 1855–1939 (cm/y). E. Name: Un55_39CmY Description: Elevation change rate uncertainty for 1855–1939 (cm/y). F. Name: 55_39CalcB Description: 1855–1939 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. G. Name: R39_65CmY Description: Mean elevation change rate for 1939–1965 (cm/y). H. Name: Un39_65CmY Description: Elevation change rate uncertainty for 1939–1965 (cm/y). I. Name: 39_65CalcB Description: 1939–1965 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. J. Name: R65_94CmY Description: Mean elevation change rate for 1965–1994 (cm/y). K. Name: Un65_94CmY Description: Elevation change rate uncertainty for 1965–1994 (cm/y). L. Name: 65_94CalcB Description: 1965–1994 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. M. Name: R55_65CmY Description: Mean elevation change rate for 1855–1965 (cm/y). N. Name: Un55_65CmY Description: Elevation change rate uncertainty for 1855–1965 (cm/y). O. Name: 55_65CalcB Description: 1855–1965 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. P. Name: R65_75CmY Description: Mean elevation change rate for 1965–1975 (cm/y). Q. Name: Un65_75CmY Description: Elevation change rate uncertainty for 1965–1975 (cm/y). R. Name: 65_75CalcB Description: 1965–1975 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. S. Name: R75_78CmY Description: Mean elevation change rate for 1975–1978 (cm/y). T. Name: Un75_78CmY Description: Elevation change rate uncertainty for 1975–1978 (cm/y). U. Name: 75_78CalcB Description: 1975–1978 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. V. Name: R78_94CmY Description: Mean elevation change rate for 1978–1994 (cm/y). W. Name: Un78_94CmY Description: Elevation change rate uncertainty for 1978–1994 (cm/y). X. Name: 78_94CalcB Description: 1978–1994 rate data calculated from borings. Values: TRUE: Calculated from legacy sediment thickness data alone. FALSE: Calculated from elevation data. ---------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1855_1994_sedimentation_exceptions.csv ---------------------------------------------------------------------------- 1. Number of variables: 10 2. Number of cases/rows: 42 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: TNum Description: Transect number (#). Unique data ID used for programming purposes. Transect number assignment started at the mouth of the Main Stem and continued in the upstream direction through the Middle Fork, North Fork, South Fork, Trout Creek, Beaver Creek, Logan Creek, and Dry Creek, respectively. Values: 1–107 B. Name: ESrvNum Description: Elevation survey number (#). Nonunique data ID used for programming purposes. Elevation survey number assignment started with the first survey through to the most recent. C. Name: TId24 Description: Transect ID following modified naming convention set in 2024. The abbreviated prefix has been modified from the previous convention: MS (Main Stem), MF (Middle Fork), NF (North Fork), SF (South Fork), TC (Trout Creek), BC (Beaver Creek), LC (Logan Creek), and DC (Dry Creek). D. Name: SrvEra Description: Survey era (YYYY or YYYY—YYYY). Indicates the survey period the data indicated in "PSource" was collected. Values: 1939—1941 1964—1968 1993–1995 E. Name: TLine Description: Transect line. Indicates whether elevation data was surveyed/calculated for the original transect trace, established in 1939, or a replacement trace, established when and if the transect was modified (i.e., relocated). Values: Original Replacement F. Name: PYr Description: Profile year (YYYY). Indicates the year the surface profile (elevation data) represents. Values: 1855 1939: 1939–1941 1965: 1964–1965 1994: 1993–1994 G. Name: PType Description: Profile type. Indicates surface profile's (elevation data's) data collection method. Values: Surveyed Calculated H. Name: ESttn1Ft Description: Elevation measurement station 1 (ft). Indicates the start of the calculation exception zone on the transect. I. Name: ESttn2Ft Description: Elevation measurement station 2 (ft). Indicates the end of the calculation exception zone on the transect. J. Name: ExcPrYr Description: Exception pair year. Indicates the which elevation change rate calculations the exception applies to. Values: All: Calculation exception applies to all elevation change rates calculated with this transect elevation dataset. 1965: Calculation exception only applies when this transect elevation dataset is being compared to 1965 elevation data. ---------------------------------------------------------------------------- DATA-SPECIFIC INFORMATION FOR: WRV_MN_1855_1994_sedimentation_statistics.csv ---------------------------------------------------------------------------- 1. Number of variables: 7 2. Number of cases/rows: 8 3. Missing data codes: n/a (not applicable) 4. Variable List A. Name: DistTrait Description: Distribution trait. Indicates the distribution trait investigated for that record. Values: Normality Variance equality Mean equality B. Name: HypTest Description: Hypothesis test. Indicates the test used to investigate the specified "DistTrait". Values: Kolmogorov–Smirnov Brown-Forsythe One-Way ANOVA Tukey's HSD C. Name: SamplGroup Description: Sample group. Indicates the sample group being tested. Two or more sample groups indicates that a group comparison. Values: 1: 1855–1939 rates 2: 1939–1965 rates 3: 1965–1994 rates D. Name: SamplNum Description: Number of samples (#). Indicates the size of the sample group. E. Name: TestStat Description: Test statistics (#). Indicates the numerical result of the statistical test. F. Name: PValue Description: P-Value (#). G. Name: Alpha Description: Alpha (0.05 [level of significance]).