Determination of total accumulated rainfall, global radiation, evapotranspiration and degree-days originated from the ECMWF model to sugar cane crop

作者：Rafael Aldighieri Moraes, Jansle Vieira Rocha, Rubens Augusto Camargo Lamparelli · 发表于：Engenharia Agrícola · 年份：2014 · DOI：10.1590/s0100-69162014000200013 · 被引用次数：13 · 研究领域：Sugarcane Cultivation and Processing、Soil Moisture and Remote Sensing、Remote Sensing in Agriculture

The climate variability between the growth and harvesting of sugar cane is very important because it directly affects yield. The MODIS sensor has characteristics like spatial and temporal resolution that can be applied to monitoring of vegetative vigor variability in the land surface and then, temporal profiles generation. Agro meteorological data from ECMWF model are free and easy to access and have a good representation of reality. In this study, we used the period between sugar cane growth and harvest in the state of Sao Paulo, Brazil, from temporal profiles selecting of NDVI behavior. For each period the precipitation, evapotranspiration, global radiation, length (days) and degree-days were accumulated. The periods were presented in a map format on MODIS spatial resolution of 250 meters. The results showed the spatial variability of climate variables and the relationship to the reality presented by official data.