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干旱监测包括对地面降水、径流、地下水和土壤水以及作物生长情况的直接观测,目前卫星遥感技术已越来越多地应用于干旱监测,成为干旱预报、预测的重要手段。干旱预报分为气候干旱预报和水文干旱预报,二者往往是结合进行的。短期水文干旱预报,经常与农业干旱或工程施工、管理运用结合进行,内容主要包括土壤墒情预报、地下水位预报以及河川水位、径流预报等作业项目,方
Drought monitoring includes direct observation of surface precipitation, runoff, groundwater and soil water as well as crop growth. At present, satellite remote sensing technology has been increasingly applied to drought monitoring and has become an important method for forecasting and forecasting drought. Drought forecast is divided into climate drought forecast and hydrological drought forecast, the two are often combined. Short-term forecast of hydrological and drought, often with agricultural drought or construction, management and application of a combination of content, including soil moisture forecast, groundwater level forecasting and river water level, runoff forecasting and other operational projects,