Years of Record: 1901/01 to 2002/12
Maps of the monthly self-calibrating Palmer drought severity index (SCPDSI) have been calculated for the period 1901–2002 for the contiguous United States (20°–50°N and 130°–60°W) and Europe (35°–70°N, 10°W–60°E) with a spatial resolution of 0.5° × 0.5°
Formats: ascii
Timestep: Monthly
Domain: Europe, North America Years of Record: 1980/01 to 2015/12
Developed by Dr. Peter E Thornton to fulfill the need for daily climatological data necessary for plant growth model inputs, Daymet generates daily, gridded surfaces of temperature, precipitation, humidity, and radiation over large regions and takes into account areas of complex terrain.
Main variables and Earth System components:
Formats: netCDF | ascii
Timestep: Climatology,Daily
Domain: North America 
Years of Record: -0001/12 to 2005/12
Tree-ring drought atlases provide a paleoclimate analog to modern drought indices, most commonly the Palmer Drought Severity Index (PDSI). Produced on a regular lat-lon grid for regions such as North America, Europe, and Australia, these centuries-long datasets are convenient for comparisons...
Formats: netCDF | ascii
Timestep: Annual
Domain: North America
See Expert Guidance by Cook, Edward
Years of Record: 2013/09
The NOAA Paleoclimatology Program distributes the product of various collaborative efforts to collect and organize pollen records from around the globe. These data include the pollen counts and related information, as well as several different derived data sets. Data archived here were last updated...
Main variables and Earth System components:
Domain: North America 
Years of Record: 1950/01 to 2013/12
The Livneh et al. (2015) hydrometeorological dataset consists of gridded daily and monthly precipitation, maximum and minimum air temperature, and wind speed for the continental US, southern Canada, and Mexico for the period 1950-2013. Gridded at 1/16° horizontal resolution (~ 6km), the data have...
Main variables and Earth System components:
Formats: netCDF
Timestep: Daily,Monthly
Domain: North America
See Expert Guidance by Livneh, Ben
Years of Record: 1998/01 to 2010/12
This data set summarizes the original observation-based mean fluxes of Water and Energy Budget (WEB) components during the first decade of the 21st century (specifically: 1998-2010), for each continent and ocean basin. These data are summarized on both monthly and annual scales, as well as...
Main variables and Earth System components:
Formats: netCDF | ascii | Spreadsheet
Timestep: Climatology,Monthly,Annual
Domain: Africa, Antarctic, Asia, Atlantic Ocean, Australia, Europe, Indian Ocean, Maritime Continent, North America, South America Years of Record: 1979/01 to 2021/09
A high resolution (32km x 29 pressure levels) data set focused upon the North American Region. Relative to the NCEP-DOE (R2) it has a much improved land-hydrology, diurnal cycle and land-atmosphere interaction. As such, it can be considered a second generation reanalysis. A unique feature is the...
Main variables and Earth System components:
Formats: GRIB
Timestep: Climatology,Sub-daily,Monthly
Domain: North America Years of Record: 1980/01 to 2014/12
The goal of the North American Land Data Assimilation System (NLDAS) is to construct quality-controlled, and spatially and temporally consistent, land-surface model (LSM) datasets from the best available observations and model output to support modeling activities. Data sets are available on hourly...
Main variables and Earth System components:
Formats: netCDF | GRIB
Timestep: Climatology,Sub-daily,Monthly
Domain: North America Years of Record: 1869/12 to 2011/12
ThreadEx is a data set of extreme daily temperature and precipitation values for 270 locations in the United States. For each day of the year at each station, ThreadEx provides the top 3 record high and low daily maximum temperatures, the top 3 record high and low daily minimum temperatures, the...
Main variables and Earth System components:
Formats: ascii
Timestep: Daily
Domain: North America 
Years of Record: 1895/01 to 2019/08
PRISM is a set of monthly, yearly, and single-event gridded data products of mean temperature and precipitation, max/min temperatures, and dewpoints, primarily for the United States. In-situ point measurements are ingested into the PRISM (Parameter elevation Regression on Independent Slopes Model)...
Main variables and Earth System components:
Formats: netCDF | ARC/INFO ASCII GRID
Timestep: Climatology,Daily,Monthly
Domain: North America
See Expert Guidance by Daly, Christopher
Years of Record: 1966/10 to 2020/10
The Snow Cover Extent Climate Data Record extends from the late 1960s to present. Historical analyses based on visual inspection have been digitized and combined with modern multi-spectral remote sensing to produce a seamless record on a hemispheric scale. The data are available at weekly and...
Main variables and Earth System components:
Formats: netCDF | ascii
Timestep: Monthly,Weekly
Domain: North America
See Expert Guidance by Estilow, Thomas W. | See Expert Guidance by Robinson, David
Years of Record: 1910/01 to 2019/11
The U.S. Climate Extremes Index (CEI) was first presented in 1995 as a framework for quantifying observed changes in climate within the contiguous United States. At present, the CEI evaluates the percent area of extremes in the distribution of much above/below average (top/bottom 10% of...
Main variables and Earth System components:
Formats: ascii
Timestep: Monthly,Seasonal,Annual
Domain: North America
See Expert Guidance by Gleason, Karin
