Meteorological satellite data-based crop disease and insect pest remote sensing monitoring method and device

Abstract

The invention discloses a remote sensing monitoring method and device for crop diseases and insect pests based on meteorological satellite data. The method comprises the following steps: acquiring SMAP and TRMM satellite image data, preprocessing the data, selecting corresponding meteorological factors according to pest and disease damage types, and interpolating the two satellite data by using aninverse distance weight method to obtain key meteorological element data with specified spatial resolution and specified time resolution in a research area; calculating according to Beijing time to obtain daily data of key meteorological factors in the research area; establishing a corresponding disease and pest attack index meteorological evaluation model by utilizing a mathematical statistics method; according to the key meteorological element daily data of the specified disease and pest type in the research area and the corresponding disease and pest attack index meteorological evaluationmodel, calculating the disease and pest attack index by taking ten days as a period; and executing a mask by utilizing the distribution data of the target crops to generate a thematic map. According to the invention, the early warning real-time performance and accuracy can be improved, and the monitoring range is wide.

Description

technical field [0001] The invention belongs to the field of surveying and mapping remote sensing, and in particular relates to a remote sensing monitoring method and device for crop diseases and insect pests based on meteorological satellite data. Background technique [0002] Crop diseases and insect pests are one of the main natural disasters in my country, characterized by various types, great impact, and frequent outbreaks. The occurrence, development, and prevalence of almost all major crop diseases and insect pests are directly or indirectly related to meteorological conditions. Therefore, the key period and key meteorological factors that affect the occurrence and prevalence of crop diseases and insect pests are usually screened through the research on the occurrence and prevalence of crop diseases and insect pests and meteorological conditions. Establish a monitoring and forecasting model for the occurrence and prevalence of crop diseases and insect pests. In recent...

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Problems solved by technology

[0005] Aiming at the need for accurate and timely early warning of pests and diseases in provincial and municipal level research areas, the present invention proposes a method and device for remote sensing monitoring of crop diseases and insect pests based on SMAP and TRMM satellite data, and solves the problem of poor real-time performance, low accuracy and low cost of existing early warning technologies for diseases and insect pests. advanced questions

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