Human Activities
Bare Ground Change 1982-2016
Changes in land cover and land use significantly affect earth system processes including the carbon cycle, the water cycle, species diversity, and socioeconomic development. Vegetation continuous fields (VCF) represent land surface as a fractional combination of vegetation functional types that can be remotely sensed from satellites. Using daily satellite observations acquired by the Advanced Very High Resolution Radiometer (AVHRR), we developed an annual VCF product consisting of tree canopy (TC) cover, short vegetation (SV) cover and bare ground (BG) cover and characterized land change over the past 35 years (1982-2016).
Global Poultry Density 2010
High resolution global map of poulty per square kilometer
PM2.5 2015
Map of Global Particulate Matter (PM2.5) aggregated for 2015
Short Vegetation Change 1982-2016
Changes in land cover and land use significantly affect earth system processes including the carbon cycle, the water cycle, species diversity, and socioeconomic development. Vegetation continuous fields (VCF) represent land surface as a fractional combination of vegetation functional types that can be remotely sensed from satellites. Using daily satellite observations acquired by the Advanced Very High Resolution Radiometer (AVHRR), we developed an annual VCF product consisting of tree canopy (TC) cover, short vegetation (SV) cover and bare ground (BG) cover and characterized land change over the past 35 years (1982-2016).
Tree Canopy Change 1982-2016
Changes in land cover and land use significantly affect earth system processes including the carbon cycle, the water cycle, species diversity, and socioeconomic development. Vegetation continuous fields (VCF) represent land surface as a fractional combination of vegetation functional types that can be remotely sensed from satellites. Using daily satellite observations acquired by the Advanced Very High Resolution Radiometer (AVHRR), we developed an annual VCF product consisting of tree canopy (TC) cover, short vegetation (SV) cover and bare ground (BG) cover and characterized land change over the past 35 years (1982-2016).
US Population Grid 2010
US Census grid of population counts from 2010.
VIIRS Cloud-Free Average Radiance (Light Pollution)
"vcm-orm" (VIIRS Cloud Mask - Outlier Removed) This product contains cloud-free average radiance values that have undergone an outlier removal process to filter out fires and other ephemeral lights. This particular map is a scaled down version of the original higher resolution map.