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| Data |
Resolution |
640x480 |
1024x768 |
1600x1200 |
| Average annual precipitation in China: medium resolution maps |
| >
1,800 mm |
>
1,600 mm |
>
1,200 |
 |
 |
 |
| >
800 mm |
>
600 mm |
>
400 mm |
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| |
0 - 4000
mm |
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Primary
Data Sources: Leemans, R. and W. Cramer, 1991, The IIASA database for mean
monthly values of temperature, precipitation and cloudiness on a global terrestrial grid,
IIASA Report, RR-91-18, Laxenburg, 63pp.
Inst. of Soil Science, Accademia Sinica, 1986, The Soil Atlas of China, Cartographic
Publishing House, Beijing, p. 6 |
Development
and evaluation procedure for the gridded climate database on China
This gridded database of mean monthly climatic data was developed by IIASA's LUC
project in collaboration with the Potsdam Institute for Climate Impact Research (PIK). It
has a grid-cell size of 5 km for monthly mean precipitation and temperature and minimum
and maximum temperature for the region of the Former Soviet Union, Mongolia and China.
IIASA's LUC project provided W.Cramer at PIK with the longitude, latitude and altitude
information of each 5 km grid cell and he performed the interpolation procedure for the
climatic data, using a methodology described in Leemans and Cramer, 1991.
For China the yearly precipitation map had inaccuracies in the difficult terrain of
south-western China on the Tibetan plateau where only few station data are available.
Therefore, in this area apparent inaccuracies in yearly precipitation were manually
corrected in a GIS environment, using hardcopy atlases from a Chinese source (see:
Institute of Soil Science, 1986). The annual changes were translated into the monthly
rainfall data applying the same ratio of yearly distribution as the original data. |
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| Related Maps |
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Revision 2.0 (First revision published in 1999)
- Copyright © 2011 by Gerhard K. Heilig. All rights reserved. (First revision: Copyright © 1999 by IIASA.) |
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