VEMAP 2: Annual Ecosystem Model Responses to U.S. Climate Change, 1994-2100

Phase 2 of the VEMAP Project developed historical (1895-1993) gridded data sets of climate (temperature, precipitation, solar radiation, humidity, and wind speed) and projected (1994-2100) gridded annual and monthly climate data sets using output from two climate system models [CCCma (Canadian Centre for Climate Modeling and Analysis) and Hadley Centre models]. Two Phase 2 model experiments were run. First, a set of selected biogeochemical models and coupled biogeochemical-biogeographical models were run from 1895 to 1993 to compare model responses to the historical time series and current ecosystem biogeochemistry. Second, these same models were run on the projected 1994 to 2100 data to compare their ecological responses to transient scenarios of climate and atmospheric CO2 change. Model runs were performed for daily, monthly, and annual gridded data sets. The output of the annual model runs in VEMAP grid format are contained in this data set. The models investigated included five biogeochemical cycling models, which simulate plant production and nutrient cycles.

VEMAP项目第二阶段构建了历史时期（1895-1993年）的气候（温度、降水量、太阳辐射、湿度和风速）网格化数据集，以及基于两个气候系统模型（加拿大气候模拟与分析中心[CCCma]和哈德莱中心模型）输出的预测时期（1994-2100年）的网格化年度和月度气候数据集。在第二阶段中，执行了两个模型实验。首先，一组精选的生物地球化学模型和耦合的生物地球化学-生物地理学模型从1895年至1993年运行，以比较模型对历史时间序列和当前生态系统生物地球化学的响应。其次，这些相同的模型在预测的1994年至2100年数据上运行，以比较它们对气候和大气CO2变化的瞬时情景的生态响应。对每日、每月和年度网格化数据集进行了模型运行。VEMAP网格格式的年度模型运行输出包含在本数据集中。所研究的模型包括五种生物地球化学循环模型，这些模型模拟植物生产和养分循环。