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Global CrIS isoprene dataset

README file (v1)
05/25/2020
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The netcdf files 
201301_CrIS_Isoprene.nc
201304_CrIS_Isoprene.nc
201307_CrIS_Isoprene.nc
201310_CrIS_Isoprene.nc
contain monthly mean observations of atmospheric isoprene derived using
observations from the CrIS satellite sensor. A full description of the
measurement algorithm and data evaluation is given in the following
manuscript:
Wells, K.C., D.B. Millet, V.H. Payne, M.J. Deventer, K.H. Bates, J.A. de
Gouw, M. Graus, C. Warneke, A. Wisthaler, and J.D. Fuentes (2020),
Global space-based isoprene measurements constrain emissions and 
atmospheric oxidation, in review.

CrIS is a Fourier transform spectrometer onboard the Suomi-NPP
satellite, flying in a sun-synchronous orbit with 1330 LT
daytime equator overpass. Information on the CrIS sensor is
available from:
Han, Y. et al. Suomi NPP CrIS measuremets, sensor data record
algorithm, calibration and validation activities, and record data
quality. J. Geophys. Res.-Atmos. 118, 12734-12748,
doi:10.1002/2013jd020344 (2013).

Data provided here are available for use on a collaborative basis. We
request that you contact us if using the data, and prior to including
it in any presentations or publication.

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Contact
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Dylan Millet (dbm@umn.edu); Kelley Wells (kcw@umn.edu)

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File description
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Data are provided in netcdf format with missing values denoted as NaN.
Results are monthly mean at the CrIS overpass time and are provided over
land only.
Variables included in the datafile are the following:
Isop:		isoprene columns in molec/cm2 as 2D [lat,lon] matrix
		dimension: [144,91]
lat:		decimal degree latitude
		dimension: [91]
lon:		decimal degree longitude
		dimension: [144]