rangeland npp v2.0 ==================== These data represent estimates of rangeland net primary production (NPP; kg*C/m^2) described in Robinson et al. (2019). Production estimates are partitioned into the following plant functional types using the cover v2.0 dataset (Allred et al. 2020): Band 1 - annual forb and grass Band 2 - perennial forb and grass Band 3 - shrub Band 4 - tree Band 5 - quality control value No Data value = 65535 Bands 1-4 are scaled by 10000 The quality control value represents the percentage of gap-filled Landsat 16-day composites. Gaps are caused by missing data, high cloud contamination, and/or erroneous pixels. A value of 255 indicates incomplete data due to failure of the gap-filling method. NOTE: Quality control values should be used at the native resolution and not used in pyramid overviews. Although these data were produced across a broad region, they are primarily intended for rangeland ecosystems. Production estimates may not be suitable in other ecosystems, e.g., forests. Estimates in agricultural lands are not to be used. No masking was performed and is therefore the responsibility of the user. Coordinate reference system =========================== Data are in WGS84 Geographic Coordinate System (EPSG:4326); spatial resolution is approximately 30m. Google Earth Engine =================== Data are available in the 'projects/rangeland-analysis-platform/npp-partitioned-v2' ImageCollection. Download tip ============ To download a specific location, use the GDAL virtual file system. For example, the following gdal_translate command will retrieve a small section of Montana (see the gdal_translate documentation for more information): gdal_translate -co compress=lzw -co tiled=yes -co bigtiff=yes \ /vsicurl/http://rangeland.ntsg.umt.edu/data/rap/rap-vegetation-npp/v2/vegetation-npp-v2-2019.tif \ -projwin -108 48 -107 47 out.tif Contacts ======== Brady Allred (allredbw@gmail.com) Matthew Jones (matt.jones@ntsg.umt.edu) Terms of use ============ This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ Data are provided "as is" without warranty of any kind, express or implied. Please attribute these data to: Robinson, N. P., M. O. Jones, A. Moreno, T. A. Erickson, D. E. Naugle, and B. W. Allred. 2019. Rangeland productivity partitioned to sub-pixel plant functional types. Remote Sensing 11:1427. http://dx.doi.org/10.3390/rs11121427 Allred, B. W., B. T. Bestelmeyer, C. S. Boyd, C. Brown, K. W. Davies, L. M. Ellsworth, T. A. Erickson, S. D. Fuhlendorf, T. V. Griffiths, V. Jansen, M. O. Jones, J. Karl, J. D. Maestas, J. J. Maynard, S. E. McCord, D. E. Naugle, H. D. Starns, D. Twidwell, and D. R. Uden. 2020. Improving Landsat predictions of rangeland fractional cover with multitask learning and uncertainty. bioRxiv:2020.06.10.142489. http://dx.doi.org/10.1101/2020.06.10.142489 Changelog ======== 2020-07-26 Public data release, version 2.0 2021-04-07 2020 NPP estimates recalculated