发布时间 : 星期四 文章资源环境经济学考试试题更新完毕开始阅读4f0e38e514791711cd79170a
1998 has been completed for the entire world. Verification and validation (V&V) studies were conducted routinely for all regions and more extensively for Israel, Germany, and the southwestern US. GIS were essential for conflation of diverse input variables, computation of probability coefficients, allocation of population to cells, and reconciliation of cell totals with aggregate control totals. Remote sensing was an essential source of two input variables—land cover and nighttime lights—and one ancillary database—high resolution panchromatic imagery—used in V&V of the population model and resulting LandScan database.
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