NCAR Climate Data Guide Content with Tag: Air Temperature

Climate Data Guide: AIRS V6-L2
AIRS (Atmospheric InfraRed Sounder): Version 6 Level 2
Years of Record: 2002/08 to 2016/09
AIRS Version 6 Level 2 data represent a significant improvement over AIRS Version 5 Level 2 products in terms of greater stability, yield, and quality. Several algorithmic improvements have been made by the AIRS Project in conjunction with the AIRS Science Team. Improvements include: (a)...
Formats: HDF | HDF-EOS Timestep: Sub-daily Domain: Global
AIRS and AMSU: Tropospheric air temperature and specific humidity
Years of Record: 2002/09 to 2011/05
The Atmospheric Infrared Sounder (AIRS) project has generated decadal-length, global, gridded data sets of temperature and specific humidity for several standard levels in the troposphere for the obs4MIPS project. This obs4MIPS version of the AIRS data are available at monthly resolution, 1ºx1º...
Main variables and Earth System components:
Formats: netCDF Timestep: Monthly Domain: Global
CHELSA precipitation climatology in the Bhutan region. (contributed by D Karger)
CHELSA high-resolution land surface temperature and precipitation
Years of Record: 1979/01 to 2013/12
The Climatologies at high resolution for the Earth's land surface (CHELSA) dataset contains high spatial resolution monthly climatologies of mean, maximum and minimum temperatures and mean precipitation, representing the period 1979-2013.  CHELSA is essentially a statistical downscaling of the...
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Formats: GeoTIFF Timestep: Climatology Domain: Global
Climate Forecast System Reanalysis (CFSR)
Years of Record: 1979/01 to 2017/11
The CFSR is a third generation reanalysis product. It is a global, high resolution, coupled atmosphere-ocean-land surface-sea ice system designed to provide the best estimate of the state of these coupled domains over this period. The CFSR includes (1) coupling of atmosphere and ocean during the...
Main variables and Earth System components:
Formats: GRIB Timestep: Sub-daily,Monthly Domain: Global
CRU TS Gridded precipitation and other meteorological variables since 1901
Years of Record: 1901/01 to 2015/12
The CRU TS series of data sets (CRU TS = Climatic Research Unit Timeseries) contain monthly timeseries of precipitation, daily maximum and minimum temperatures, cloud cover, and other variables covering Earth's land areas for 1901-2015 (CRU TS4.0 is a recent release). The data set is gridded to 0....
Formats: netCDF | ascii Timestep: Climatology,Monthly Domain: Global
Climate Data Guide Image: ERA-Interim
ERA-Interim
Years of Record: 1979/01 to 2017/09
Using a much improved atmospheric model and assimilation system from those used in ERA-40, ERA-Interim represents a third generation reanalysis. Several of the inaccuracies exhibited by ERA-40 such as too-strong precipitation over oceans from the early 1990's onwards and a too-strong Brewer-Dobson...
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Formats: netCDF | GRIB Timestep: Sub-daily,Daily,Monthly Domain: Global
ERA40
Years of Record: 1957/09 to 2002/08
ERA 40 is a second generation reanalysis. It is the first reanalysis to directly assimilate satellite radiance data (TOVS, SSM/I, ERS and ATOVS). Cloud Motion Winds are also used. The result is better circulation over the tropics and southern hemisphere. However, unless comparing  to previous...
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Formats: netCDF | GRIB Timestep: Sub-daily,Monthly Domain: Global
Global (land) precipitation and temperature: Willmott & Matsuura, University of Delaware
Years of Record: 1900/01 to 2014/12
A series of gridded temperature and precipitation data sets. Station records that served as bases for the Terrestrial Air Temperature: 1900-2014 Gridded Monthly Time Series (Version 4.01) and Terrestrial Precipitation: 1900-2014 Gridded Monthly Time Series (Version 4.01) archives are used here to...
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Formats: netCDF | ascii Timestep: Climatology,Monthly Domain: Global
change of annual temperature in the GISTEMP data; ClimataDataGuide figure.
Global surface temperature data: GISTEMP: NASA Goddard Institute for Space Studies (GISS) Surface Temperature Analysis
Years of Record: 1880/01 to 2016/11
NASA Goddard's Global Surface Temperature Analysis (GISTEMP) combines land surface air temperatures primarily from the GHCN-M version 3 with SSTs of the ERSSTv3b analysis into a comprehensive global surface temperature data set spanning 1880 to the present at monthly resolution, on a 2x2 degree...
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Formats: netCDF | ascii | binary Timestep: Monthly Domain: Global
Change of temperature between 1901:1920 and 1991:2010 based on the HadCRUT4 dataset. Credit: ClimateDataGuide, NCAR
Global surface temperature data: HadCRUT4 and CRUTEM4
Years of Record: 1850/01 to 2017/09
Extending back to 1850 and frequently updated, HadCRUT4 is the longest data set of its type. HadCRUT4 is a combination of the global land surface temperature data set, CRUTEM4 and the global SST data set, HadSST3. HadCRUT4 is different from the most closely comparable products (e.g. NASA GISTEMP...
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Formats: netCDF | ascii | KML Timestep: Climatology,Monthly Domain: Global
Change of temperature in the MLOST data set.
Global surface temperature data: MLOST: NOAA Merged Land-Ocean Surface Temperature Analysis
Years of Record: 1871/01 to 2016/11
NOAA's Merged Land-Ocean Surface Temperature Analysis (MLOST) combines land surface air temperatures primarily from the Global Historical Climatology Network, Monthly (GHCN-M) version 3 with SSTs of the ERSSTv3b analysis into a comprehensive global surface temperature data set spanning 1880 to the...
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Formats: netCDF | binary Timestep: Monthly Domain: Global
Change of temperature in the Berkeley Earth data Set.
Global surface temperatures: BEST: Berkeley Earth Surface Temperatures
Years of Record: 1701/01 to 2013/03
The Berkeley Earth Surface Temperatures (BEST) are a set of data products, originally a gridded reconstruction of land surface air temperature records spanning 1701-present, and now including an 1850-present merged land-ocean data set that combines the land analysis with an interpolated...
Formats: netCDF Timestep: Climatology,Daily,Monthly Domain: Global
Change of surface temperatures in 5 global data sets. credit: NCAR, climatedataguide
Global Temperature Data Sets: Overview & Comparison Table
Years of Record: 1850/01 to 2013/10
Global surface temperature data sets are an essential resource for monitoring and understanding climate variability and climate change. The most commonly used data sets combine historical observations of near surface air temperatures at land stations with global data sets of sea surface...
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Formats: netCDF | ascii | binary Timestep: Climatology,Monthly Domain: Global
ICOADS Surface Marine Weather Observations
Years of Record: 1800/01 to 2016/09
ICOADS (International Comprehensive Ocean-Atmosphere Data Set) is the most comprehensive archive of global marine surface climate observations available. Variables include SST, SLP, air temperature, wind speed, cloud amount, and others. There is no processing beyond initial quality control. ICOADS...
Formats: netCDF | ascii | binary | IMMA Timestep: Climatology,Daily,Monthly Domain: Global
JRA-25
Years of Record: 1979/01 to 2004/12
JRA-25 is a second generation reanalysis product. The model and data assimilation are from the operational system in April 2004. It was the first reanalysis to assimilate wind profiles around tropical cyclones deduced from best-track data, resulting in improved tropical cyclone analysis in a global...
Main variables and Earth System components:
Formats: GRIB Timestep: Sub-daily,Monthly Domain: Global
JRA-55
Years of Record: 1957/12 to 2017/07
Spanning 1958-present, JRA-55 is the longest third-generation reanalysis that uses the full observing system (in contrast, products like ERA-20C and NOAA 20CR assimilate a very limited set of observations while NCEP R1 uses an antiquated model and assimilation scheme).  Compared to the...
Main variables and Earth System components:
Formats: GRIB Timestep: Sub-daily,Monthly Domain: Global
See Expert Guidance by Kobayashi, Shinya
MSU/AMSU Atmospheric Temperature Climate Data Record, Remote Sensing Systems (RSS)
Years of Record: 1979/01 to 2012/12
A long (30-year+) data set of atmospheric temperatures for 4 tropopsheric and lower stratopsheric layers has been derived from brightness temperatures measured by the Microwave Sounding Unit (MSU) and Advanced Microwave Sounding Unit (AMSU). This page describes the data sets developed by Remote...
Main variables and Earth System components:
Formats: netCDF | ascii | binary Timestep: Monthly Domain: Global
NASA MERRA
Years of Record: 1979/01 to 2016/11
The Modern Era Retrospective-Analysis for Research and Applications (MERRA) was undertaken by NASA’s Global Modeling and Assimilation Office with two primary objectives: to place observations from NASA’s Earth Observing System satellites into a climate context and to improve upon the hydrologic...
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Formats: netCDF | HDF Timestep: Sub-daily,Monthly Domain: Global
NASA's MERRA2 reanalysis
Years of Record: 1980/01 to 2017/11
The Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) is a global atmospheric reanalysis produced by the NASA Global Modeling and Assimilation Office (GMAO). It spans the satellite observing era from 1980 to the present. The goals of MERRA-2 are to provide a...
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Formats: netCDF Timestep: Sub-daily,Daily,Monthly Domain: Global
See Expert Guidance by Bosilovich, Michael | See Expert Guidance by Cullather, Richard
NCEP NARR
Years of Record: 1979/01 to 2017/11
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...
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Formats: GRIB Timestep: Climatology,Sub-daily,Monthly Domain: North America
NCEP Reanalysis (R2)
Years of Record: 1979/01 to 2017/11
NCEP-DOE Reanalysis II (R2) is an improved version of the NCEP-NCAR Reanalysis I (R1). The improvements include an updated model with better physical parameterizations, assorted data assimilation errors were fixed and additional data were included. Still, it is still a 'first generation' product.
Main variables and Earth System components:
Formats: netCDF | GRIB Timestep: Sub-daily,Daily,Monthly Domain: Global
NCEP-NCAR (R1): An Overview
Years of Record: 1948/01 to 2017/11
NCEP-NCAR (R1) is the original reanalysis effort. It uses a frozen global state-of-the-art global data assimilation system (as of 11 January 1995). The original database was enhanced (additional, quality checked datasets) by NCAR's Data Support Section. Originally planned to span 1957-96 ("40-Year...
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Formats: netCDF | GRIB Timestep: Sub-daily,Daily,Monthly Domain: Global
Climate Data Guide Image: NLDAS July 1980-2009 climatologies
NLDAS: North American Land Data Assimilation System
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
Climate Data Guide image
NOAA 20th-Century Reanalysis, Version 2 and 2c
Years of Record: 1850/12 to 2014/12
The Twentieth Century Reanalysis (20CR) provides a comprehensive global atmospheric circulation data set spanning 1850-2014. Its chief motivation is to provide an observational validation data set, with quantified uncertainties, for assessing climate model simulations of the 20th century, with...
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Formats: netCDF | GRIB Timestep: Sub-daily,Daily,Monthly Domain: Global
Climate Data Guide Image: ThreadEx
NOAA ThreadEx Long-term Station Extremes for America
Years of Record: 1870/01 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...
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Formats: ascii Timestep: Daily Domain: North America
Climate Data Guide Image: SSMI (v7) monthly mean rain rate for July, 2012.
SSMI Version 7: Ocean Product Suite
The Ocean Product Suite (v7) from Remote Sensing Systems (RSS) is available in netCDF (v4) format. The RSS Ocean Product Suite includes numerous data products for the SSMI/SSMIS instruments on the DMSP F08, F10, F11, F13, F14, F15, F17 polar orbiting satellites. These are part of the NASA Making...
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Formats: netCDF Timestep: Sub-daily,Daily,Monthly Domain: Global
NOCv2.0 Surface Flux and Meteorological Dataset (contributed by E. Kent)
Surface Flux and Meteorological Dataset: National Oceanography Centre (NOC) V2.0
Years of Record: 1973/01 to 2014/12
The National Oceanography Centre  (NOC) Version 2.0 Surface Flux and Meteorological Dataset is a monthly mean gridded dataset of marine surface measurements and derived fluxes constructed using optimal interpolation. Input for the period 1973 to 2006 are ICOADS Release 2.4 ship data and the...
Formats: netCDF Timestep: Monthly Domain: Global
Tropical Moored Buoy System: TAO, TRITON, PIRATA, RAMA (TOGA)
Years of Record: 1992/01 to 2013/04
The Tropical Ocean Global Atmosphere program (TOGA) is a component of the World Climate Research Programme (WCRP) aimed specifically at the prediction of climate phenomena on time scales of months to years. In order to achieve the TOGA goals, a strategy of large-scale, long-term monitoring of the...
Formats: netCDF | ascii Timestep: Sub-daily,Daily,Monthly,Weekly Domain: Tropics
NOAA CEI
U.S. Climate Extremes Index (CEI)
Years of Record: 1910/01 to 2012/12
The CEI was first presented in 1995 as a framework for quantifying observed changes in climate within the contiguous United States. The index is based on an aggregate set of conventional climate extreme indicators which now includes extremes in land- falling tropical storm and hurricane wind...
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Formats: ascii Timestep: Monthly,Seasonal,Annual Domain: North America
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