Planned intervention: On Wednesday June 26th 05:30 UTC Zenodo will be unavailable for 10-20 minutes to perform a storage cluster upgrade.
Published March 13, 2010 | Version 1.1
Dataset Open

MIRCA2000

Description

Crop water requirements of irrigated crops and crop water use of rainfed crops is calculated by the Global Crop Water Model (GCWM) for the period 1998-2002 based on a soil water balance performed in daily time steps.Crop yields of rainfed and irrigated crops are distinguished by downscaling yields reported in national and subnational agricultural statistics (Monfreda et al., 2008) by considering drought stress simulated for rainfed agriculture. Virtual water contents are calculated as ratio between crop water use and crop yield. Domestic virtual water flows are determined by calculating a balance between crop production and crop consumption at grid cell level and establishing flows from surplus cells (major production areas) to deficit cells (highly populated regions). Crop growing areas, sowing and harvest dates were derived from the global data set of monthly irrigated and rainfed crop areas around the year 2000 (MIRCA2000). Consequently, crop water use (blue and green) is computed for the crops wheat, rice, maize, barley, rye, millet, sorghum, soybeans, sunflower, potatoes, cassava, sugar cane, sugar beet, oil palm, rapeseed/canola, groundnuts/peanuts, pulses, citrus, date palm, grapes/vine, cocoa, coffee, cotton and unspecified other crops (other perennial crops, other annual crops, fodder grasses). For the calculation of crop yields, virtual water contents and virtual water flows we distinguish in addition the usage of maize, rye and sorghum for grain or forage. Virtual water flows are computed for crops traded mainly as primary commodities (all specific crops except of sugar cane, sugar beet and cotton). The data set has a spatial resolution of 5 arc-minutes by 5 arc-minutes.

Format: ASCII-grids (global, 5 arc-minute) or text files (country data).

For a detailed description of each folder see https://www.uni-frankfurt.de/45218023/MIRCA and https://www.uni-frankfurt.de/45218031/Data_download_center_for_MIRCA2000.

Notes

Purpose: Modelling of water use by irrigated and rainfed agriculture, modelling of blue and green virtual water content, modelling crop productivities, development of data sets on global cropland and crop types, modelling of the impact of irrigated agriculture on global (or regional) climate. We advise to use the data set for global assessments or at the scale of world regions.

Files

cell_area_grid.zip

Files (1.1 GB)

Name Size Download all
md5:5a90333ddc2666b25c70ef3ace39f760
26.0 kB Preview Download
md5:5ec706bab9a517abcfa61958ad680f82
107.1 kB Preview Download
md5:111517a8c6af285aa31c2a16b1b26fc4
25.7 kB Preview Download
md5:88dd7f63a64e8ffe8f255d42bdcf9c6f
1.3 MB Preview Download
md5:80f11c892c46f6183a4c5046e4877e4a
172.2 MB Preview Download
md5:73d703a508170d9a8bea79ca0ea08ce1
186.6 MB Preview Download
md5:cf1ce74522acfa415d8d031432dbfac9
15.5 MB Preview Download
md5:d5861276464ff3d62d24dcd45ea5c36d
177.7 MB Preview Download
md5:511601cddce4ac1412172995269de0c8
209.9 MB Preview Download
md5:a5c738624a340be3bab10a2a018874ff
297.9 MB Preview Download
md5:39ef11227b963b4d8079f990d06825be
226.3 kB Preview Download

Additional details

References

  • Portmann, F. T., Siebert, S. & Döll, P. (2010): MIRCA2000 – Global monthly irrigated and rainfed crop areas around the year 2000: A new high-resolution data set for agricultural and hydrological modeling, Global Biogeochemical Cycles, 24, GB1011, doi:10.1029/2008GB003435.