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Dataset

 

ACITES: Land cover data for the Olson and Global Land Cover Facility data sets

Latest Data Update: 2018-06-15
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2018-10-16
Download Stats: last 12 months
Dataset Size: 4 Files | 770KB
Abstract

Model grid cell areas and land cover data for the Olson and Global Land Cover Facility. Data are regridded to a consistent 3 x 3 degree resolution and saved in NetCDF format.
The Olson land cover dataset was developed from Advanced Very High Resolution Radiometer (AVHRR) Normalized Difference Vegetation Index (NDVI) composites covering 1992-1993.
The Global Land Cover Facility dataset was developed from monthly satellite sensor data of NDVI values for 1987.

Citable as:  Wild, O.; Evans, M.J.; Stevenson, D. (2018): ACITES: Land cover data for the Olson and Global Land Cover Facility data sets. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/b117e4bd7f754d22a65fc823694fa388
Abbreviation: Not defined
Keywords: ACITES, Atmospheric Chemistry, Land Cover

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
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:

Land cover data regridded to the same resolution
as the HTAP model results, approximately 3 x 3 degrees.

1. The data is in NetCDF format

2. The area for each 3 x 3 degree grid cell is in area3x3.nc

3. The land cover data for the Olson and Global Land Cover Facility
data sets are in: lc_olson_3x3.nc and lc_umd_3x3.nc

4. The original Olson land cover data set was obtained from:
http://acmg.seas.harvard.edu/geos/

5. The original Global Land Cover Facility data set was obtained from:
http://www.landcover.org/

6. See Hardacre et al., Atmos. Chem. Phys., 15, 6419-6436, 2015,
doi:10.5194/acp-15-6419-2015 for further details on the data
sets used in this study.
File Format:
netCDF

Related Documents

 Olson land cover data set
 Global land cover facility data
 An evaluation of ozone dry deposition in global scale chemistry climate models
 ACITES Webpage

Process overview

This dataset was generated by the computation detailed below.
Title

ACITES: Python code used to produce the NetCDF files
Abstract

Python code used to produce the NetCDF files in the htap_data, land_surface_data and measurement_data direc
Input Description

None
Output Description

None
Software Reference

None
  • units: m2
  • long_name: area of each grid cell
  • var_id: area3x3
  • units: fraction
  • long_name: bare_ground
  • standard_name: fractional_cover_of_land_cover_class_bare_ground
  • var_id: bare_ground
  • units: fraction
  • long_name: coniferous_tree
  • standard_name: fractional_cover_of_Wesely_land_cover_class_coniferous_tree
  • var_id: coniferous_tree
  • units: fraction
  • long_name: crops
  • standard_name: fractional_cover_of_land_cover_class_crops
  • var_id: crops
  • units: fraction
  • long_name: deciduous_tree
  • standard_name: fractional_cover_of_Wesely_land_cover_class_deciduous_tree
  • var_id: deciduous_tree
  • units: fraction
  • long_name: desert
  • standard_name: fractional_cover_of_Wesely_land_cover_class_desert
  • var_id: desert
  • units: fraction
  • long_name: grass_land
  • standard_name: fractional_cover_of_Wesely_land_cover_class_grass_land
  • var_id: grass_land
  • units: fraction
  • long_name: grassland
  • standard_name: fractional_cover_of_land_cover_class_grassland
  • var_id: grassland
  • units: degrees_north
  • long_name: latitude
  • var_id: lat
  • units: degrees_east
  • long_name: longitude
  • var_id: lon
  • units: fraction
  • long_name: no_data
  • standard_name: fractional_cover_of_land_cover_class_no_data
  • var_id: no_data
  • units: fraction
  • long_name: shrub_bare_ground
  • standard_name: fractional_cover_of_land_cover_class_shrub_bare_ground
  • var_id: shrub_bare_ground
  • var_id: snow_ice
  • units: fraction
  • long_name: snow_ice
  • standard_name: fractional_cover_of_land_cover_class_snow_ice
  • units: fraction
  • long_name: tropical_forest
  • standard_name: fractional_cover_of_Wesely_land_cover_class_tropical_forest
  • var_id: tropical_forest
  • units: fraction
  • long_name: tundra
  • standard_name: fractional_cover_of_land_cover_class_tundra
  • var_id: tundra
  • var_id: urban
  • units: fraction
  • long_name: urban
  • standard_name: fractional_cover_of_Wesely_land_cover_class_urban
  • var_id: water
  • units: fraction
  • long_name: water
  • standard_name: fractional_cover_of_land_cover_class_water
  • units: fraction
  • long_name: wetland
  • standard_name: fractional_cover_of_Wesely_land_cover_class_wetland
  • var_id: wetland
  • units: fraction
  • long_name: wooded_grassland
  • standard_name: fractional_cover_of_land_cover_class_wooded_grassland
  • var_id: wooded_grassland

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1987-01-01T00:00:00
End time:
1993-12-31T23:59:59
Geographic Extent

 
90.0000°
  
-180.0000°
  
180.0000°
 
-90.0000°
  
Related parties
Authors (3)
Publishers (1)
Funders (1)
Principal Investigators (3)