The invention relates to a method for acquiring the
ground surface temperature through NPPVIIRS data. By means of the method, appropriate
ground surface temperature data can be provided for weather,
agriculture drought and environment monitoring. The method overcomes the defect that due to the fact that a VIIRS sensor is not provided with a
moisture channel, the inversion precision is limited. According to the method, MODIS sensor
moisture data carried by an Aqua
satellite operating at a sun-
synchronous orbit with the descending node being 13: 30 are used for acquiring the
moisture data of VIIRS data observation swath. The
ground surface temperature inversion
algorithm suitable for 11 microns and 12 microns of the VIIRS sensor is derived, an
atmospheric radiation transfer model MODTRAN4 is used for simulating and calculating the
transmittance of an M15 channel and the
transmittance of an M16 channel of the VIIRS sensor under different
atmospheric moisture contents (0.4-6.0 g / cm<2>, and increasing is carried out with 0.1 g / cm<2> as the step size), the
emissivity of ground features corresponding to the M15 channel and the
emissivity of ground features corresponding to the M16 channel of the VIIRS sensor are estimated according to International Geosphere Biosphere Program (IGBP) data, and finally the inverting of the ground surface temperature is obtained. According to the method, study is carried out on the inversion of the ground surface temperature based on the VIIRS sensor, and stable transmission from the MODIS data to the VIIRS data in the
agriculture environment
data monitoring is facilitated.