Growing Days
Citation Information
Title: Growing Days
Source: IIASA Global Agro-Ecological Zones (GAEZ).
Date: 2001
Citation: Global Agro-Ecological Zones (GAEZ). 2011b. Agro-Climatic Constraints. [online] URL: http://www.fao.org/nr/gaez/about-data-portal/agricultural-suitability-and-potential-yields/en/. Accessed June 6, 2011.
Description
Global grid of number of growing days based on temperature and precipitation constraints, as well as potential for pest damage. Native resolution is 0.5° projected in Geographic Coordinate System WGS 1984
Processing Procedure
1. In ArcMap 10.0, convert native data to 30 arc second resolution.
2. Extrapolate existing data using a 30×30 cell rectangular neighborhood.
3. Use zonal statistics to calculate mean values within each GLU.
Data Coverage
Data is coded by the number of cells covered by the native data (1), data extrapolation (2), and not covered by either (3).
DGG Cell Coverage Report | |||||
Coverage Codes | Frequency | Percent | Valid Percent | Cumulative Percent | |
Valid | 1 | 1438075 | 99.5 | 99.5 | 99.5 |
2 | 1245 | .1 | .1 | 99.6 | |
3 | 5644 | .4 | .4 | 100.0 | |
Total | 1444964 | 100.0 | 100.0 |