LakeCat Updates

• There was and error found in the NLCD 2006 and NLCD 2011 tables that were published to LakeCat that have now been corrected - the values reflected the previous release of these two NLCD years rather than the NLCD 2016 product versions of NLCD 2006 and NLCD 2011.

• There was an update to StreamCat code to flow table connections in Hydroregions 2 and 13 that altered watershed areas slightly for a number of COMIDS. This affects lakes that are 'on-network' and use StreamCat results.  Several metrics in LakeCat hadn't been updated to reflect this update and the following LakeCat final tables were updated:
  • Dams.csv
  • ImperviousSurfaces2016.csv
  • NABD.csv
  • PRISM_1981_2010.csv
  • ImperviousSurfaces2001.csv
  • ImperviousSurfaces2006.csv
  • ImperviousSurfaces2011.csv
  • WetIndx.csv
  • NADP.csv

NLCD 2016 land cover/land use and Impervious 

• Land cover and land use from the National Land Cover Dataset (2016) are now summarized and available for lake watersheds for each newly published NLCD year.  All previous versions of NLCD are in an archive directory on the ftp site.
• New tables include:
  • NLCD2016.csv
  • NLCD2013.csv
  • NLCD2011.csv
  • NLCD2008.csv
  • NLCD2006.csv
  • NLCD2004.csv
  • NLCD2001.csv
  • ImperviousSurfaces2016
  • ImperviousSurfaces2011.csv
  • ImperviousSurfaces2006.csv
  • ImperviousSurfaces2001.csv

The Composite Topographic Index (CTI) generated by EnviroAtlas used to generate the Wetness Index in LakeCat was recently updated. The Wetness Index in LakeCatCat was re-calculated using this updated, corrected CTI raster from EnviroAtlas.

April 9, 2018 - LakeCat article and dataset published online

• The article is now available in the journal Freshwater Science
• LakeCat FTP site is now online