Description:Reflectance data in visible, near, short infrared and thermal bands

Organization: NASA/USGS

Spatial resolution: 30-m, 80-m, and 120-m

Time Span: 1982-Present (Updated every 16-days )

Composite Images:

EVI: Enhanced Vegetation Index

LST: Land Surface Temperature

NDVI: Normalized Difference Vegetation Index

NDSI: Normalized Difference Snow Index

NDWI: Normalized Difference Water Index

Methods:

ACCA cloud mask: Handbook

Chander radiance to top-of-atmosphere reflectance coefficients for Landsat 4/5/7

the Landsat 4-7 SR product guide and the Landsat 8 SR product guide.

Website: Landsat Website

Google Earth Engine Catalog: the following products are used in Climate Engine

Landsat 4,5,7,8 SR Info

Landsat 4 TOA Info

Landsat 5 TOA Info

Landsat 7 TOA Info

Landsat 8 TOA Info

Description:Reflectance data in 36 frequency bands: visible to thermal

Organization: NASA

Spatial resolution: 250-m, 500-m, and 1-km

Time Span: 1999-Present (Updated every 1-2-days)

Composite Images: (daily, 8-day, 16-day, monthly, quarterly, annual)

EVI: Enhanced Vegetation Index

LST: Daytime Land Surface Temperature

NDVI: Normalized Difference Vegetation Index

NDSI: Normalized Difference Snow Index

NDWI: Normalized Difference Water Index

Methods:

MODIS MOD09 User Guide-Version 1.3

MODIS MOD09 User Guide-Version 1.4

Website: MODIS Website

Google Earth Engine Catalog: MODIS Info

Description: Remote sensing derived evapotranspiration dataset based on MODIS-thermal imagery and global weather datasets.

Organization: United States Geological Survey (USGS)

Spatial resolution: 1-km grid (1/96-deg)

Time Span:  2003-Present (Updated every 10-12-days)

Variables: (Dekadal,Monthly,Annual)

ETa: Actual Evapotranspiration 

Methods:

Actual ET (ETa) is produced using the operational Simplified Surface Energy Balance (SSEBop) model (Senay et al., 2013).

Website: FEWSNET page

Google Earth Engine Catalog:  this product is not available yet on the Google Earth Engine.

Description:The AVHRR Pathfinder Version 5.2 Sea Surface Temperature data set (PFV52) is a collection of global, twice-daily 4km sea surface temperature data.

Organization:NOAA

Spatial resolution: 4-km grid (1/24 deg)

Time Span: 1981-08-24 - 2012-12-31

Variables:

Sea Surface Temperature

Website: AVHRR Technical Specifications

Google Earth Engine Catalog: AVHRR Info

Description:NCEP Climate Forecast System Reanalysis dataset

Organization: NOAA NWS National Centers for Environmental Prediction (NCEP)

Spatial resolution:

After 2011: 19.2-km grid (1/5-deg)

Before 2011: 28.8-km grid (3/10-deg)

Time Span: 1979-Present(Updated every day)

Variables:

Minimum/Maximum/Mean Temperature

Minimum/Maximum/Mean Specific Humidity

Precipitation

Wind Speed and Components

Latent/Sensible Heat

Downward/Upward Shortwave/Longwave and Net Radiation

Soil Moisture

Potential Evapotranspiration

Surface Geopotential Height

Website: CFSR Website

Google Earth Engine Catalog: CFSR Info

Description:Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) is a 30+ year quasi-global rainfall dataset

Organization:UCSB/CHG

Spatial resolution: 4.8-km grid (1/20 deg)

Time Span: 1981-present(Updated every month)

Variables:

5-day precipitation

Website: CHIRPS Website

Google Earth Engine Catalog: CHIRPS Info

Description: NASAs Modern-Era Retrospective analysis for Research and Applications, Version 2 Reanalysis dataset

Organization: NASAs Global Modeling and Assimilation Office (GMAO) 

Spatial resolution:

~50-km (0.5-deg x 0.625-deg) 

Time Span: 1980- present (Updated every 1-2 months)

Variables:

Minimum/Maximum/Mean Temperature

Precipitation

Website: MERRA2 website

Google Earth Engine Catalog: MERRA2 is not on the Google Earth Engine yet.

Description: Top of Atmosphere data in visible, near, and short wave infrared  

Organization: European Space Agency (ESA)

Spatial resolution: 10-m, 20-m, and 60-m

Time Span: 2015 to Present (Updated every 5/10 days)

Composite Images: (daily, 8-day, 16-day, monthly, quarterly, annual)

EVI: Enhanced Vegetation Index

NDVI: Normalized Difference Vegetation Index

NDSI: Normalized Difference Snow Index

NDWI: Normalized Difference Water Index

Website: Sentinel Website

Google Earth Engine Catalog: Sentinel Info

Description: The  SNOw Data Assimilation System (SNODAS) is a modeling and data assimilation system developed to provide the best possible estimates of snow cover and associated parameters to support hydrologic modeling and analysis.

Organization: NOAAs The National Operational Hydrologic Remote Sensing Center (NOHRSC)

Spatial resolution: ~1-km (1/120-deg)

Time Span: 2003-10-01 to Present (updated daily)

Variables:

Snow Water Equivalent (SWE)

Snow Depth

Website: SNODAS Website

Google Earth Engine Catalog: SNODAS is not on the Google Earth Engine yet.

Description: Global climate and climate water balance dataset for terrestrial surfaces based on WorldClim and CRU Ts4.0 and JRA55

Organization: University of California Merced (UCM)

Spatial resolution: 4-km grid (1/24-deg)

Time Span: 1979 to Present (daily data, updated every day)

Variables:

Minimum/Maximum Temperature

Precipitation accumulation

Minimum/Maximum Relative Humidity

Downward solar radiation

Wind speed and direction

Reference evapotranspiration(ASCE grass/alfalfa)

Vapor Pressure Deficit

Palmer drought severity index (PDSI)

Standardized precipitation index (SPI)

Website: gridmet Website

Google Earth Engine Catalog: gridmet Info