NCAR Climate Data Guide Content with Tag: Gridded from obs

APHRODITE: Asian Precipitation - Highly-Resolved Observational Data Integration Towards Evaluation of Water Resources
Years of Record: 1950/01 to 2007/12
APHRODITE’s (Asian Precipitation - Highly-Resolved Observational Data Integration Towards Evaluation) daily gridded precipitation is the only long-term (1951 onward) continental-scale daily product that contains a dense network of daily rain-gauge data for Asia including the Himalayas, South and...
Main variables and Earth System components:
Formats: netCDF | ascii | binary Timestep: Climatology,Daily Domain: Asia
Estimated net flux of carbon from land to atmosphere due to land use change.
Carbon Emissions from Historical Land-Use and Land-Use Change
Years of Record: 1800/01 to 2012/09
Annual net land-atmosphere carbon flux and net flux of carbon to the atmosphere due to land-use and land-use change (LULUC) are estimated using an integrated assessment model and three historical reconstructions of land use and land use conversion. The data span 1800-2010 and are aggregated for...
Main variables and Earth System components:
Formats: binary Timestep: Annual Domain: Global
See Expert Guidance by Meiyappan, Prasanth
January mean precipitation in CMAP (contributed by P Arkin)
CMAP: CPC Merged Analysis of Precipitation
Years of Record: 1979/01 to 2017/10
CMAP refers to a collection of precipitation data sets, though the 2.5°x2.5° global monthly version is probably the most widely used. This data set is constructed from an analysis of gauge data and satellite-derived precipitation estimates. An "enhanced" version (CMAP/A) is also available, which...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly,Pentad Domain: Global
Climate Data Guide Image
CPC Unified Gauge-Based Analysis of Global Daily Precipitation
Years of Record: 1948/01 to 2017/07
A gauge-based analysis of daily precipitation has been constructed over the global land areas. Gauge reports from over 30,000 stations are collected from multiple sources including GTS, COOP, and other national and international agencies. Quality control is performed through comparisons with...
Main variables and Earth System components:
Formats: binary Timestep: Daily Domain: Global
Climate Data Guide Image: CRU sc-PDSI
CRU sc-PDSI (self-calibrating PDSI) over Europe & North America
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°
Main variables and Earth System components:
Formats: ascii Timestep: Monthly Domain: Europe, North America
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
Extended Edited Synoptic Cloud Reports Archive (EECRA) from Ships and Land Stations Over the Globe
Years of Record: 1952/01 to 2008/12
"The Extended Edited Synoptic Cloud Reports Archive makes use of routine synoptic observations made by humans on ships over the ocean and at weather stations over land. Following the synoptic code (WMO, 1974), observers report the fraction of sky dome covered by all clouds, the fraction of sky dome...
Main variables and Earth System components:
Formats: ascii Timestep: Sub-daily Domain: Global
Climate Data Guide Image: Freshwater Discharge
Freshwater Discharge: 1948-2004
Years of Record: 1948/01 to 2004/12
"A dataset of historical monthly streamflow at the farthest downstream stations for the world’s 925 largest ocean-reaching rivers has been created for community use. Compared with previous studies, the new dataset has improved homogeneity and enables more reliable assessments of decadal and long-...
Main variables and Earth System components:
Formats: netCDF | ascii | binary Timestep: Monthly Domain: Global
GHGH-M temperature anomalies for March 2014 (source NCDC)
GHCN (Global Historical Climatology Network) Related Gridded Products
Years of Record: 1870/01 to 2014/05
Long time series of gridded surface temperature and precipitation data derived from homongenized station data. The gridded anomalies were produced from GHCN-M bias corrected data. GHCN data and CAMS (Climate Anomaly Monitoring System) are combined to produce a high resolution 'real-time' product.
Formats: netCDF | ascii Timestep: Monthly Domain: Global
NCAR Climate Data Guide Image using GHCNDEX data.
GHCNDEX: Gridded Temperature and Precipitation Climate Extremes Indices (CLIMDEX data)
Years of Record: 1951/01 to 2014/02
GHCNDEX provides gridded, station-based indices of temperature- and precipitation- related climate extremes. It is intended for climate change detection and attribution studies, climate model evaluation, and operational monitoring of extreme climatic events. Twenty-six indices, including daily...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: 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...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Climatology,Monthly Domain: Global
Climate Data Guide Image:  thermospheric sea level change
Global Ocean Heat and Thermospheric Sea Level Change
Years of Record: 1955/01 to 2010/12
Using updated data from the World Ocean Database (Boyer et al, 2009) and improved ARGO profiling data, new estimates of ocean heat content and thermospheric sea level change (0-2000m) for the period 1955-2010 are derived.
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly,Seasonal,Annual 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...
Main variables and Earth System components:
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...
Main variables and Earth System components:
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...
Main variables and Earth System components:
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...
Main variables and Earth System components:
Formats: netCDF | ascii | binary Timestep: Climatology,Monthly Domain: Global
GLODAP: GLobal Ocean Data Analysis Project for Carbon
Years of Record: 2013/09
The GLobal Ocean Data Analysis Project (GLODAP) is a cooperative effort to coordinate global synthesis projects funded through the National Oceanic and Atmospheric Administration (NOAA), the U.S. Department of Energy (DOE), and the National Science Foundation (NSF) as part of the Joint Global Ocean...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Climatology Domain: Global
Zonal-mean rain frequency in GPCC 1dd (contributed by A. Pendergrass)
GPCP (Daily): Global Precipitation Climatology Project
Years of Record: 1996/10 to 2015/11
The 1DD product provides precipitation estimates on a 1-degree grid over the entire globe at 1-day (daily) for the period October 1996 - present. Both the Pentad and 1DD products are consistent with the Version 2 monthly product in the sense that the Pentad and 1DD approximately sum to the monthly...
Main variables and Earth System components:
Formats: netCDF | binary Timestep: Daily Domain: Global
See Expert Guidance by Pendergrass, Angeline
Map of significant trends in precipitation, according to GPCP v2.2. (contributed by A. Pendergrass)
GPCP (Monthly): Global Precipitation Climatology Project
Years of Record: 1979/01 to 2015/11
Data from rain gauge stations, satellites, and sounding observations have been merged to estimate monthly rainfall on a 2.5-degree global grid from 1979 to the present. The careful combination of satellite-based rainfall estimates provides the most complete analysis of rainfall available to date...
Main variables and Earth System components:
Formats: netCDF | binary Timestep: Climatology,Monthly Domain: Global
See Expert Guidance by Pendergrass, Angeline
Gridded Climatology of Clouds from Surface Observations Worldwide (1971-2008)
Years of Record: 1954/01 to 2009/12
This digital archive provides multi-year monthly, seasonal, and annual averages in 5x5-degree grid boxes (or 10x10-degree boxes for some quantities over the ocean). Daytime and nighttime averages, as well as the diurnal average (average of day and night), are given. Nighttime averages were computed...
Main variables and Earth System components:
Formats: ascii Timestep: Climatology,Monthly,Seasonal Domain: Global
HadDTR: Hadley Centre sea-surface temperature diurnal temperature range climatology
The Hadley Centre sea-surface temperature diurnal temperature range climatology is a 5x5 degree gridded climatology of the diurnal range of sea surface temperature as measured by drifting buoys.
Main variables and Earth System components:
Formats: ascii Timestep: Climatology Domain: Global
NCAR Climate Data Guide Image using HadEX2 data.
HadEX2: Gridded Temperature and Precipitation Climate Extremes Indices (CLIMDEX data)
Years of Record: 1901/01 to 2010/12
HadEX2 provides gridded, station-based indices of temperature- and precipitation- related climate extremes. It is intended for climate change detection and attribution studies and climate model evaluation. Twenty-nine indices, including daily maximum and minimum temperatures, number of frost days,...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly,Annual Domain: Global
HadGHCNDEX - Gridded Daily Temperature Extremes
Years of Record: 1950/01 to 2011/12
HadGHCND (aka HadGHCNDEX) is a gridded daily dataset of near-surface maximum (TX) and minimum (TN) temperature observations. Anomalies (departures from 1961-1990 climatology) and actual temperatures are distributed in two separate files. The dataset is designed primarily for the analysis of...
Main variables and Earth System components:
Formats: ascii Timestep: Daily Domain: Global
Historical land-cover changes and land-use conversions global data set by Meiyappan and Jain
Years of Record: 1800/01 to 2010/12
A set of three estimates of land-cover types and annual transformations of land use are provided on a global 0.5°x0.5° grid at annual timesteps. The longest of the three estimates spans 1770-2010. The three estimates use three different data sets of cropland and pastureland. Common input data...
Main variables and Earth System components:
Formats: netCDF Timestep: Annual Domain: Global
See Expert Guidance by Meiyappan, Prasanth
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
Kaplan Sea Surface Temperature Anomalies
Years of Record: 1856/01 to 2017/10
The most up-to-date version is known as Kaplan Extended SST v2, which combines statistically infilled grids of UK Met Office SSTs for 1856-1981 with a statistically reduced and coarser resolution version of Smith and Reynolds Optimally Interpolated (OI) SSTs for 1981 to present. Those desiring only...
Main variables and Earth System components:
Formats: netCDF Timestep: Monthly Domain: Global
Merged Hadley-NOAA/OI Sea Surface Temperature & Sea-Ice Concentration (Hurrell et al, 2008)
Years of Record: 1870/01 to 2016/03
The merged Hadley-OI sea surface temperature (SST) and sea ice concentration (SIC) data sets were specifically developed as surface forcing data sets for AMIP style uncoupled simulations of the Community Atmosphere Model (CAM). The Hadley Centre's SST/SIC version 1.1 (HADISST1), which is derived...
Main variables and Earth System components:
Formats: netCDF Timestep: Monthly Domain: Global, Antarctic, Arctic, NH - Northern Hemisphere, SH - Southern Hemisphere
ocean energy budget based on IAP ocean temperature analysis (contributed by L Cheng)
Ocean temperature analysis and heat content estimate from Institute of Atmospheric Physics
Years of Record: 1940/01 to 2016/12
The Institute of Atmospheric Physics (IAP) ocean temperature analysis features global coverage of the oceans, at 1° x1° horizontal resolution on 41 vertical levels from 1-2000m, and monthly resolution from 1940 to present.  As such, it is aimed at studies of climate variability and change,...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly Domain: Global
Permafrost: Circum-Arctic Map of Permafrost and Ground Ice Conditions
The circumpolar permafrost and ground ice data contribute to a unified international data set that depicts the distribution and properties of permafrost and ground ice in the Northern Hemisphere (20°N to 90°N). The re-gridded data set shows discontinuous, sporadic, or isolated permafrost boundaries.
Main variables and Earth System components:
Formats: binary | shapefile Timestep: Climatology Domain: NH - Northern Hemisphere
Climate Data Guide Image: PREC/L
Precipitation Reconstruction Land (PREC/L): 1948-present
Years of Record: 1948/01 to 2017/10
Precipitation gauge measurements over land from the GHCN-v2 (Global Historical Climatology Network version 2) are interpolated onto 3 grids: at 0.5, 1 and 2.5 degree resolutions via optimal interpolation. Note: As of May, 2011 the GHCN version 3 station data set is available.
Main variables and Earth System components:
Formats: netCDF | ascii | binary Timestep: Monthly Domain: Global
Climate Data Guide Image: HADISST ice concentrations
Sea Ice Concentration data from HadISST
Years of Record: 1870/01 to 2017/09
Spanning 1871-present at monthly timesteps, HadISST provides the longest gridded sea ice data available for both the Arctic and Antarctic. It is a 1° x 1° spatially infilled data set that is It is intended as a consistent analyses for input into SST analyses or as boundary conditions for models....
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly Domain: Antarctic, Arctic, NH - Northern Hemisphere, SH - Southern Hemisphere
SOCAT: Surface Ocean CO2 Atlas
Years of Record: 1970/01 to 2007/12
SOCAT (Surface Ocean CO2 Atlas)  represents an effort to "provide a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC)." The data sets are comprised of observations (ship track) and gridded data.
Main variables and Earth System components:
Formats: netCDF Timestep: Climatology,Monthly,Annual Domain: Global
SST data: COBE: Centennial in situ Observation-Based Estimates
Years of Record: 1891/01 to 2017/10
The COBE data set is a spatially complete, interpolated 1°x1° SST product for 1891 to present. It combines SSTs from ICOADS release 2.0, the Japanese Kobe collection, and reports from ships and buoys. Data are gridded using optimal interpolation. As in HadISST, data up to 1941 were bias-adjusted...
Main variables and Earth System components:
Formats: GRIB Timestep: Monthly Domain: Global
Climate Data Guide Image: HadISST v1.1 SST anomalies and sea ice concentration (August 2012).
SST data: HadiSST v1.1
Years of Record: 1870/01 to 2017/09
The Hadley Centre Global Sea Ice and Sea Surface Temperature (HadISST) is a combination of monthly globally complete fields of SST and sea ice concentration for 1871-present. This page focuses on the SST data; see the separate page for discussion of HadISST sea ice. HadISST uses reduced space...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly Domain: Global
Climate Data Guide Image: HadSST3 (Kennedy et al (2011b)
SST data: HadSST3
Years of Record: 1850/01 to 2014/10
HadSST3 provides monthly SST anomalies on a 5°x5° grid for 1850-present. The anomalies are derived from a 30-year climatology spanning 1961-90.Coverage is global but there is no interpolation; Thus, missing data occur in the final product. The primary input data are from ICOADS release 2.5. Bias...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly Domain: Global
SST data: NOAA Extended Reconstruction SSTs, version 3 (ERSSTv3 & 3b)
Years of Record: 1854/01 to 2017/10
The NOAA Extended Reconstruction Sea Surface Temperature (ERSST) provides global, spatially complete SST data at a monthly timestep for 1854-present. Version3 is based upon statistical interpolation of the ICOADS release 2.4 data. Version 3 includes satellite AVHRR SST data for 1985 onwards....
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly Domain: Global
ERSST v4 timeseries (contributed by B Huang)
SST data: NOAA Extended Reconstruction SSTs, Version 4
Years of Record: 1854/01 to 2016/12
The NOAA Extended Reconstruction Sea Surface Temperature (ERSST) provides global, spatially complete SST data at a monthly timestep for 1854-present.  Compared to the previous version, Version 4 uses the more extensive ICOADS Release 2.5 data and revised quality control, bias adjustment, and...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Monthly Domain: Global
SST data: NOAA High-resolution (0.25x0.25) Blended Analysis of Daily SST and Ice, OISSTv2
Years of Record: 1981/09 to 2017/10
"NOAA’s Optimum Interpolation Sea Surface temperature (OISST, also known as Reynolds’ SST) is a series of global analysis products, including the weekly OISST on a 1° grid to the more recent daily on a ¼° grid. An SST analysis is a spatially gridded product created by interpolating and...
Main variables and Earth System components:
Formats: netCDF | binary Timestep: Daily Domain: Global
See Expert Guidance by Banzon, Viva | See Expert Guidance by Reynolds, Richard
Climate Data Guide Image: NOAA OI SST: SST range (C)
SST data: NOAA Optimal Interpolation (OI) SST Analysis, version 2 (OISSTv2) 1x1
Years of Record: 1981/12 to 2017/10
The NOAA Optimal Interpolation SST analysis provides global, spatially complete SSTs on a weekly and monthly basis for 1982-present.
Main variables and Earth System components:
Formats: netCDF | ascii | binary Timestep: Climatology,Monthly,Weekly Domain: Global
See Expert Guidance by Banzon, Viva | See Expert Guidance by Reynolds, Richard
Vertical profiles of December climatologies at (65N,270E) for Forcing and RPC.
Stratospheric & Tropospheric Ozone: ACC/SPARC (Atmospheric Chemistry and Climate / Stratospheric Processes and their Role in Climate)
Years of Record: 1850/01 to 2099/12
"The AC...
Main variables and Earth System components:
Formats: netCDF Timestep: Monthly Domain: Global
Stratospheric Ozone: Randel & Wu 2007
Years of Record: 1979/01 to 2005/12
This is a monthly, zonal-mean ozone profile data set spanning 1979–2005 for altitudes from the tropopause up to 50 km. Interannual variability is based on a combination of SAGE (Stratospheric Aerosol and Gas Experiment) satellite profile measurements and polar ozonesondes.  The interannual...
Main variables and Earth System components:
Formats: binary Timestep: Monthly Domain: Global
Total column ozone (DU) for March 2011 (patched version).
Total Column Ozone: Bodeker Scientific
Bodeker Scientific produces global, daily, total column ozone database by combining measurements from a number of different satellite-based instruments. Offsets and drifts between the different datasets are resolved through comparisons with the Dobson and Brewer ground-based instruments and through...
Main variables and Earth System components:
Formats: netCDF | ascii Timestep: Daily,Monthly Domain: Global
Climate Data Guide Image: WASWind
WASWind: Wave and Anemometer-based Sea Surface Wind
Years of Record: 1950/01 to 2011/12
"WASWind (Wave and Anemometer-based Sea Surface Wind) provides a bias-corrected marine surface wind dataset over the global oceans. Variables include scalar, zonal and meridional winds at 10-meter high, and zonal and meridional components of wind stress. WASWind has been constructed from wind...
Main variables and Earth System components:
Formats: netCDF Timestep: Monthly Domain: Global
See Expert Guidance by Tokinaga, Hiroki
World Ocean Atlas (WOA09)
World Ocean Atlas 2009 (WOA09) is a set of objectively analyzed (1 degree grid) climatological fields of in situ temperature, salinity, dissolved oxygen, Apparent Oxygen Utilization (AOU), percent oxygen saturation, phosphate, silicate, and nitrate at standard depth levels for annual, seasonal, and...
Formats: netCDF | ascii Timestep: Climatology,Monthly,Seasonal,Annual Domain: Global
Northwest Atlantic regional Sea Water Salinity Annual fields for period of 1995-2004 at 50m depth (contributed by A. Mishonov)
World Ocean Atlas 2013 (WOA13)
Years of Record: 1955/01 to 2012/12
The World Ocean Atlas (WOA) is a set of climatological mean, gridded fields of oceanographic variables based on in-situ measurements from a wide variety of sources.  Global, decadal averages of temperature, salinity, oxygen and nutrients are provided at monthly, seasonal and annual averaging...
Formats: netCDF | ascii | shapefile Timestep: Climatology,Monthly,Seasonal Domain: Global
See Expert Guidance by Mishonov, Alexey
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