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Dataset

 

ISLSCP - I, Volume 2: Near-surface meteorological analyses

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2007-02-14
Download Stats: last 12 months

Abstract

This CD-ROM set contains the Volume 2 Near-surface meteorological analyses data collection. The data covers a 24 month period, 1987-1988, and all but one are mapped to a common spatial resolution and grid (1 degree x 1 degree). Temporal resolution for most datasets is monthly; however, a few are at a finer resolution (e.g., 6-hourly).
This dataset contains data covering Near-surface meteorological analyses and hybrid products

Citable as:  GEWEX ISLSCP Project (2007): ISLSCP - I, Volume 2: Near-surface meteorological analyses. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/2a05fa3b540026a65d8fad14870c938a
Abbreviation: Not defined
Keywords: ISLSCP, NASA, Near-Surface Meteorology

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_1171494537614823
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

CD-ROM was published in 1996, with data obtained over the 24 month period, 1987-1988 by satellite. CEDA-BADC acquired a copy of the CD-ROM and later uploaded its content into the BADC archive for online browsing.

Data Quality:
As per documentation provided including Dataset Status page.
File Format:
Data are plain ASCII formatted

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by the computation detailed below.
Title ECMWF reanalysis output for the ISLSCP-I project
Abstract The ECMWF, and ECMWF, NASA/LaRC data on the ISLSCP Initiative I CD-ROM are comprised of the ECMWF/TOGA Advanced Operational Analysis Data the ECMWF/TOGA Supplementary Fields data and a hybrid dataset using the radiation fields within the ECMWF/TOGA Supplementary Fields and the NASA/LaRC Surface Shortwave and Longwave Radiation Fluxes data set. ECMWF/TOGA Advanced Operational Analysis Data Sets: This dataset contains uninitialized analysis values at the resolution of the data assimilation system in operational use at ECMWF. The Advanced Operational Analysis Data Set, on the ISLSCP Initiative 1 CD-ROM, are comprised only of the Surface and Diagnostic Fields. The original ECMWF Surface and Diagnostic Fields data set was represented on a 320 x 160 grid, with a regular spacing of 1.125 degrees (lat/long) between points along each row for the period January 1, 1987 - December 31, 1988. Grid point values were stored in latitude rows starting at the north and working southwards; within each row values ran from west to east, starting at the 0 degree longitude. All of the ECMWF Surface and Diagnostic Fields Data sets, on the ISLSCP CD-ROM, have been converted, by the Goddard DAAC, to a 1 X 1 degree equal angle lat/long grid, starting at 90 degrees latitude North and 180 degrees longitude West (see section 9.3.1). The Parameters from the Surface and Diagnostic Fields data set, on the ISLSCP Initiative I CD-ROM set, are: Surface Fields - surface pressure, surface temperature, soil moisture, snow depth, mean sea level pressure, u- and v-components of wind at 10m, temperature at 2m, dew point temperature at 2m, deep-soil wetness, deep-soil temperature. Diagnostic Fields - surface roughness, albedo, climate deep-soil wetness, climate deep-soil temperature. ECMWF/TOGA Supplementary Fields Data Set: The Supplementary Fields Data Set contains surface heat fluxes, net radiation and u- v-stress derived from 6-hour forecasts used as "first-guess" for analyses within ECMWF's data assimilation system. The Supplementary Fields Data Set acquired from ECMWF were represented in the same format, as the Surface and Diagnostic Fields Data set, described above. All ECMWF Supplementary Fields Data Sets, on the ISLSCP CD-ROM, have been converted, by the Goddard DAAC, to a 1 X 1 degree equal angle lat/long grid, starting at 90 degrees latitude North and 180 degrees longitude West (see section 9.3.1). The Parameters from the Supplementary Fields data set, on the ISLSCP Initiative I CD-ROM set, are: surface flux of sensible heat, surface flux of latent heat, surface shortwave radiation, surface longwave radiation, top of the atmosphere shortwave radiation, top of the atmosphere longwave radiation, and the zonal and meridional components of the surface wind stress. Most of the near-surface meteorological data are taken directly from forecast products generated by the ECMWF operational numerical weather prediction model. ECMWF requested that the following information be provided to users of the ECMWF data: The ECMWF data sets are adapted to a specific model orography; the data sets have biases which are only partially documented (reference list). No surface observations of T, q, precipitation, nor surface wind observations over land were used in the analysis. Model spin up can seriously affect the flux data. All flux fields, including total cloud cover, are first-guess fields (i.e. 6 hour forecasts). All the time-evolving fields on this CD-ROM, such as soil moisture, snow depth and deep soil parameters include no direct observations, but evolve during the data assimilation cycle. The Technical Attachment to the Description of the ECMWF/WCRP Archive should be cited by users in publications (see reference section). In addition to the routine products extracted from the ECMWF archive for this data set, NASA/GSFC generated synthetic 'hybrid' 6-hourly incident surface shortwave and longwave radiation fluxes, and NOAA/NMC generated 'hybrid' 6-hourly total and convective precipitation rates. As presented on the CD-ROMs the data sets include: I. Prescribed/Diagnostic Fields (see table in section 1.3), II. Monthly (6-hourly) Forcing Fields (see table in section 1.3), III. Diurnally-resolved (6-hourly) Forcing Fields (see table in section 1.3). (These include the hybrid products). The data in I are intended for reference rather than direct use by modelers. The data sets in II are suitable for forcing long time-step models. The data sets in III have been put together for the express purpose of forcing energy-water-carbon land models.
Input Description None
Output Description None
Software Reference None
  • long_name: Albedo
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P041/4/G199
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Albedo
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Albedo, http://vocab.ndg.nerc.ac.uk/term/P041/4/G199
  • long_name: Canopy Characteristics
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0109
  • gcmd_keyword: Canopy Characteristics
  • names: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0109, Canopy Characteristics
  • long_name: Cloud Amount
  • names: Cloud Amount
  • long_name: Cloud Optical Depth
  • names: Cloud Optical Depth
  • long_name: Cloud Top Pressure
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0149
  • gcmd_keyword: Cloud Top Pressure
  • names: Cloud Top Pressure, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0149
  • long_name: Convective Precipitation
  • names: Convective Precipitation
  • long_name: Discharge
  • names: Discharge
  • long_name: Flow
  • names: Flow
  • long_name: Frequency
  • names: Frequency
  • long_name: Hydropattern
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P041/4/G656
  • gcmd_keyword: EARTH SCIENCE > Hydrosphere > Surface Water > Hydropattern
  • names: EARTH SCIENCE > Hydrosphere > Surface Water > Hydropattern, http://vocab.ndg.nerc.ac.uk/term/P041/4/G656
  • long_name: Ice
  • names: Ice
  • long_name: Land Cover
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0451
  • gcmd_keyword: Land Cover
  • names: Land Cover, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0451
  • long_name: Landforms
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P041/4/G793
  • gcmd_keyword: EARTH SCIENCE > Land Surface > Topography > Landforms
  • names: http://vocab.ndg.nerc.ac.uk/term/P041/4/G793, EARTH SCIENCE > Land Surface > Topography > Landforms
  • long_name: Leaf Characteristics
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0469
  • gcmd_keyword: Leaf Characteristics
  • names: Leaf Characteristics, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0469
  • long_name: Net Radiation
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0546
  • gcmd_keyword: Net Radiation
  • names: Net Radiation, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0546
  • long_name: Photosynthetically Active Radiation
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0627
  • gcmd_keyword: Photosynthetically Active Radiation
  • names: Photosynthetically Active Radiation, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0627
  • long_name: Precipitation Amount
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0656
  • gcmd_keyword: Precipitation Amount
  • names: Precipitation Amount, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0656
  • long_name: Reflectance
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P041/4/G212
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Reflectance
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Reflectance, http://vocab.ndg.nerc.ac.uk/term/P041/4/G212
  • long_name: Rivers
  • names: Rivers
  • long_name: Sea Ice Concentration
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0719
  • gcmd_keyword: Sea Ice Concentration
  • names: Sea Ice Concentration, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0719
  • long_name: Sea Surface Temperature
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0728
  • gcmd_keyword: Sea Surface Temperature
  • names: Sea Surface Temperature, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0728
  • long_name: Snow Cover
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0766
  • gcmd_keyword: Snow Cover
  • names: Snow Cover, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0766
  • long_name: Snow Depth
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0768
  • gcmd_keyword: Snow Depth
  • names: Snow Depth, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0768
  • long_name: Soil Depth
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0784
  • gcmd_keyword: Soil Depth
  • names: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0784, Soil Depth
  • long_name: Soil Texture
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0802
  • gcmd_keyword: Soil Texture
  • names: Soil Texture, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0802
  • long_name: Streams
  • names: Streams
  • long_name: Surface Thermal Radiation
  • names: Surface Thermal Radiation
  • long_name: Thickness
  • names: Thickness
  • long_name: Vegetation Cover
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0915
  • gcmd_keyword: Vegetation Cover
  • names: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0915, Vegetation Cover

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1987-01-01T00:00:00
End time:
1988-12-31T00:00:00
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°