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Accumulated temperature spatial distribution data, temperature distribution data, sunshine data, rainfall distribution, solar radiation data, surface runoff data, land use data, NPP data, NDVI data

2022-06-12 04:48:00 Geographic remote sensing ecological network

introduction

Accumulated temperature is the sum of daily average temperature in a certain period , It studies plant growth 、 The requirement of heat for development and an index for evaluating heat resources , It is one of the important factors affecting plant growth , It is of great significance to guide agricultural production and ecological construction . As an important climate resource , The difference between accumulated temperature and other resources is that there are great regional differences and time changes . National greater than 0℃ Accumulated temperature spatial distribution information product is a meteorological product launched by Geographical remote sensing ecological network / One of the series data products of climate and environment .

   Data download link : Data download link

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※ brief introduction

Accumulated temperature is the sum of daily average temperature in a certain period , It studies plant growth 、 The requirement of heat for development and an index for evaluating heat resources , It is one of the important factors affecting plant growth , It is of great significance to guide agricultural production and ecological construction . As an important climate resource , The difference between accumulated temperature and other resources is that there are great regional differences and time changes . It is of great practical significance to understand the spatial variation and distribution of accumulated temperature .

※ Data information source

Annual average of meteorological stations ≥0℃ Annual accumulated temperature and place names of meteorological stations 、 longitude 、 Latitude and altitude data ; DEM data ; China border data .

※ Data interpolation algorithm

The spatial distribution of accumulated temperature and topography 、 Vegetation and other underlying surface characteristics are closely related , According to the idea of clustering , Cluster and partition the study area , Make the consistency of accumulated temperature distribution characteristics in the zone stronger . Then we use statistical method to find the law of annual accumulated temperature changing with altitude , To obtain high-precision estimation results .

Then, geographic location and terrain factors are introduced into the accumulated temperature interpolation , It well reflects the overall trend of the spatial distribution of accumulated temperature , It also shows the local subtle characteristics of accumulated temperature distribution , The overall accuracy of the accumulated temperature interpolation is improved .

Data source reference : Geographic remote sensing ecological network www.gisrs.cn

meanwhile , Geographic remote sensing ecological network www.gisrs.cn Many scientific data in the field of Geographical remote sensing are shared on the website ( Land use data 、npp Net primary productivity data 、NDVI data 、 Weather data ( rainfall 、 The temperature 、 Evapotranspiration 、 radiation 、 humidity 、 Sunshine hours 、 The wind speed 、 Vapor pressure data )、 Runoff data 、 Night light data 、 Statistical yearbook 、 road network 、POI Point of interest data 、GDP Distribution 、 Population density distribution 、 Vector boundary of tertiary watershed 、 Geological hazard distribution data 、 Soil type 、 Soil texture 、 Soil organic matter 、 soil PH value 、 Soil texture 、 Soil erosion 、 Vegetation type 、 Distribution of nature reserves 、 Building contour distribution and other geographic data , And about the gis、 A tutorial on remote sensing ).

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