Average monthly and annual precipitation spatial grids. (1971-2000 and 1980-1989), Andrews Experimental Forest

These files are spatially gridded precipitation of average monthly and annual precipitation for the climatological periods 1971-2000 and 1980-89, Andrews Experimental Forest. The original 1980-89 grids were updated for a greater time span and also the extent of the coverage is increased. Interpolation of point station measurements to a spatial grid was done using the PRISM model, developed by Christopher Daly of the PRISM Group at Oregon State University. PRISM interpolation accounts for the effects of elevation on the spatial patterns of precipitation. Grid resolution is 100 meters. Station data used in the interpolation were obtained from current and historic rain gauge stations within the forest. These grids represent the first significant effort to map climatological precipitation in the Andrews Forest. Further information on PRISM can be found at http://prism.oregonstate.edu/本数据集包含安德鲁斯实验森林（Andrews Experimental Forest）1971-2000年及1980-1989年两个气候学时段的逐月、逐年平均降水空间格点数据。原始1980-1989年格点数据已完成更新，不仅延长了时间跨度，还扩大了覆盖范围。本数据集采用俄勒冈州立大学PRISM小组克里斯托弗·戴利（Christopher Daly）研发的PRISM模型（PRISM），将站点实测点数据插值为空间格点数据。PRISM插值算法会考量海拔对降水空间分布格局的影响，格点分辨率为100米。插值所用的站点数据取自该林区内当前及历史的雨量站观测资料。这套格点数据是安德鲁斯实验森林气候学降水制图领域的首次重要尝试。如需了解PRISM模型的更多信息，请访问http://prism.oregonstate.edu/