Reference Evapotranspiration (Global - Mean Yearly - ~19km)

Grid with estimated yearly reference evapotranspiration with a spatial resolution of 10 arc minutes. The dataset contains average values for global land areas, excluding Antarctica, for the period 1961-1990. The dataset has been prepared according to the FAO Penman - Monteith method with limited climatic data as described in FAO Irrigation and Drainage Paper 56. The dataset consists one ASCII-grid with yearly data in mm/year. ASCII-grids with mean monthly data in mm/day * 10 are also available as described in the associated resources of this metadata.

Simple

Date (Creation)
2004-01-01
Edition

first
Presentation form
Digital map
Purpose

This dataset is especially useful to perform GIS-based water balance model calculations (e.g. GlobWat).
Status
Completed
Originator
  FAO-UN Land and Water Division - Jippe Hoogeveen
Theme

  • reference evapotranspiration

  • evaporation

  • transpiration

  • climate

  • meteorology

  • AQUAMAPS_climate

  • AQUAMAPS_globwat

  • Tag_AQUASTAT

  • Tag_AQUAMAPS
Place

  • World
Spatial representation type
Grid
Distance
10  arc/minutes
Metadata language

eng
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
Begin date
1961-01-01
End date
1990-12-31
N
S
E
W
thumbnail


Reference system identifier
EPSG:4326 - WGS84
Number of dimensions
4
Dimension name
Row
Dimension size
1080
Resolution
10  arc/minutes
Dimension name
Column
Dimension size
2160
Resolution
10  arc/minutes
Dimension name
Time
Dimension size
12
Resolution
1  month
Dimension name
Vertical
Dimension size
10
Resolution
1  mm/day
Cell geometry
Area
Transformation parameter availability
No
Distribution format
  • ASCII-grid ( )

OnLine resource
Online link to 'The CRU CL 2.0 Global Climate Dataset' - website ( WWW:LINK-1.0-http--link )
OnLine resource
Crop evapotranspiration - Guidelines for computing crop water requirements ( WWW:LINK-1.0-http--link )
OnLine resource
etoyr_7416 ( OGC:WMS-1.1.1-http-get-map )

Global map of yearly reference evapotranspiration (mm/year) - 10 arc-min

OnLine resource
Download - Global map of yearly and monthly reference evapotranspiration - 10 arc minutes (13 TXT files) ( WWW:DOWNLOAD-1.0-http--download )
OnLine resource
Download - Global map of monthly reference evapotranspiration (GlobWat-input files) - 5 arc minutes (12 ASCII-grid) ( WWW:DOWNLOAD-1.0-http--download )
Hierarchy level
Dataset
Statement

The input data used to calculate this dataset are part of the "CRU CL 2.0 Global Climate Dataset" prepared by the Climate Research Unit of the University of East Anglia, UK, and distributed through the website: http://www.cru.uea.ac.uk/~timm/grid/CRU_CL_2_0.html ).

File identifier
38047053-a960-46b7-98fc-970fc17cd29d XML
Metadata language

eng
Character set
UTF8
Parent identifier
Reference Evapotranspiration (Global - Mean Monthly - ~19km)

db326f70-88fd-11da-a88f-000d939bc5d8
Date stamp
2021-12-23T09:03:06
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

1.0
Point of contact
  FAO-UN Land and Water Division - AQUASTAT
Viale delle Terme di Caracalla , Rome , 00153 , Italy
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

AQUAMAPS_climate AQUAMAPS_globwat Tag_AQUAMAPS Tag_AQUASTAT climate evaporation meteorology reference evapotranspiration transpiration

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Not available