AgMIP's global gridded crop model intercomparison (GGCMI) phase II CTWN-A archive: priority 1 outputs from GEPIC maize simulations

This data set contains output data from simulations with the model GEPIC for maize as part of AgMIP's Global Gridded Crop Model Intercomparison (GGCMI) phase II output data set. Output variables included are: crop yield, above-ground biomass, planting day, maturity day, potential irrigation water withdrawal, actual growing season evapotranspiration . Simulations are based on 31-year simulations using the AgMERRA (Ruane et al. 2015) data set with 4 atmospheric CO2 mixing ratios (C=360, 510, 660, 810 ppm) uniform offsets for temperature (T= -1, 0, 1, 2, 3, 4, 6 K), water (W= -50, -30, -20, -10, 0, 10, 20, 30 %, and infinite/irrigated), and 3 nitrogen input levels (N= 10, 60, 200 kgN/ha) using 2 assumptions on adaptation (A0= 'none', A1='regain original growing season').本数据集隶属于农业模型改进与互比项目（AgMIP）的全球网格作物模型比对（Global Gridded Crop Model Intercomparison, GGCMI）第二阶段产出数据集，包含以玉米为供试作物、基于GEPIC模型开展的模拟实验输出数据。所包含的输出变量如下：作物产量、地上生物量、播种日期、成熟日期、潜在灌溉需水量、实际生长季蒸散量。本次模拟以AgMERRA（Ruane等，2015）数据集为驱动数据，开展为期31年的模拟实验，设置的工况参数包括：4种大气CO₂混合比水平（C=360、510、660、810 ppm）、7种均匀温度偏移扰动（T=-1、0、1、2、3、4、6 K）、8种水分调控工况（W=-50、-30、-20、-10、0、10、20、30%，以及无限灌溉/全灌溉工况）、3种氮肥投入水平（N=10、60、200 kgN/ha），同时涵盖2种适应性假设（A0=‘无适应’，A1=‘恢复原生生长季时长’）。