河南省各个农田参考作物腾发量分析数据
收藏资源简介：
通过全自动小型气象站对河南省各个农田实时监测空气中的温度、湿度和风速,并每日上传即时数据，分析计算参考作物腾发量ET0，为农田水分盈亏分析提供数据支撑，指导农田科学灌溉和排水，从而提高作物的产量和质量。1.每天每半小时通过全自动小型气象站对河南省各个农田实时监测空气中的温度、湿度和风速等并每日上传即时数据。 2、数据处理 对采集到的数据进行去重、合并，按照区域分类、统计处理，计算出每日农业的太阳净辐射量（W/m²）、温度（℃）、风速（m/s）、饱和蒸汽压（Pa）、环境湿度（%rh）、大气压值斜率、空气湿度，基于这些参数利用以下公式计算参考作物腾发量ET0： ET0=0.408*每日太阳净辐射量*大气压值斜率/（大气压值斜率+（空气湿度常数*（1+0.34*风速）））+900*风速/（温度+273.15）*（饱和蒸汽压-环境湿度）*空气湿度常数/（大气压值斜率+（空气湿度常数*(1+0.34*风速）））。 3、数据应用：通过长期ET0数据跟踪与分析，实现对该区域农田的蒸发蒸腾监测，为灌溉和排水提供数据支撑，从而提高作物的产量和质量。
This dataset conducts real-time monitoring of air temperature, relative humidity and wind speed at various farmlands in Henan Province using fully automatic mini weather stations, uploads real-time data daily, analyzes and calculates reference crop evapotranspiration (ET0), provides data support for farmland water balance analysis, guides scientific irrigation and drainage of farmlands, thereby improving crop yield and quality. 1. Real-time monitoring of air temperature, relative humidity, wind speed and other relevant meteorological parameters at various farmlands in Henan Province is performed every 30 minutes via fully automatic mini weather stations, with real-time data uploaded daily. 2. Data Processing: The collected data are deduplicated, merged, classified and statistically processed by region. Daily net solar radiation (W/m²), air temperature (℃), wind speed (m/s), saturated vapor pressure (Pa), environmental relative humidity (%rh), atmospheric pressure slope and air humidity are calculated. Reference crop evapotranspiration (ET0) is calculated using the following formula based on these parameters: ET0=0.408*R_n*Δ/(Δ + γ*(1+0.34*u)) + 900*u/(T+273.15)*(e_s - e_a)*γ/(Δ + γ*(1+0.34*u)), where R_n denotes daily net solar radiation, Δ is the atmospheric pressure slope, γ is the psychrometric constant, u is wind speed, T is air temperature, e_s is saturated vapor pressure, and e_a is the actual vapor pressure corresponding to environmental relative humidity. 3. Data Application: Long-term tracking and analysis of ET0 data enable evapotranspiration monitoring of farmlands in Henan Province, providing data support for irrigation and drainage to improve crop yield and quality.
