Digitization of Minnesota and Wisconsin bathymetric maps resulting in hypsographic data
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8/1/2019
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Title
Digitization of Minnesota and Wisconsin bathymetric maps resulting in hypsographic data
Published Date
2020-09-09
Author Contact
Rounds, Christopher
round060@umn.edu
round060@umn.edu
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Dataset
Field Study Data
Spatial Data
Field Study Data
Spatial Data
Abstract
The data set includes hypsographic data (area-at-depth) for over 750 Minnesota and Wisconsin lakes throughout the states. The majority of these lakes (650+) did not have publicly available hypsography. The hypsography was derived by digitizing bathymetric DNR maps using ImageJ. One hundred Minnesota lakes were selected that had DNR hypsographic data (in the form of a DEM) available and a comparison between the hypsographic data derived from DEMs and ImageJ was completed. These results, as well as code and hypsographic data is all available. The purpose of this work was to release broad scale lake area-at-depth data for limnological and aquatic biology studies.
Description
Minnesota_Hypsography is a folder containing csv files of hypsographic data from Minnesota lakes. Validation_Hypsography is a folder containing csv files of hypsographic data used for validation. Wisconsin_Hypsography is a folder containing csv files of hypsographic data from Wisconsin lakes. MN_bathy.rds is an R file with interpolated depth for a subset of lakes in Minnesota. Hypso_QC.r is an R file used for quality control purposes with hypsographic data that has been digitzed. Validation_report is an R file that has the comparisons between DNR derived hypsography and ImageJ derived hypsography.
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https://conservancy.umn.edu/handle/11299/216182.2
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Rounds, Christopher I; Hansen, Gretchen JA; Vitense, Kelsey; Van Pelt, Amanda. (2020). Digitization of Minnesota and Wisconsin bathymetric maps resulting in hypsographic data. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/f3xa-5h34.
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Readme.txt
Description of data
(9.46 KB)
Minnesota_Hypsography.zip
Hypsography for MN lakes
(126.2 KB)
Wisconsin_Hypsography.zip
Hypsography for WI lakes
(79.95 KB)
SouthDakota_Hypsography.zip
Hypsography for SD lakes
(32.28 KB)
Validation_Hypsography_AVP.zip
Hypsography for 100 MN validation lakes digitized by AVP
(25.82 KB)
Validation_Hyspography_CR.zip
Hypsography for 100 MN validation lakes digitized by CR
(24.39 KB)
MN_bathy.rds
MNDNR hypsographic data
(613.75 KB)
MN_areas.csv
CSV of MN lake areas
(11.45 KB)
WI_areas.csv
CSV of WI lake areas
(6.99 KB)
SD_areas.csv
CSV of SD lake areas
(7.1 KB)
Validation_report.R
R script comparing DEM and ImageJ hypsography
(16.49 KB)
Hypso_QC.R
R quality control script
(3.45 KB)
How to extract area-at-depth information from bathymetric maps using ImageJ.mp4
MP4 tutorial showing how to use the ImageJ software (14:33 min)
(42.74 MB)
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