三江源国家公园星空地一体化生态监测数据平台
三江源国家公园数据分析生产推送系统
The NPP products of MODIS in Sanjiangyuan (1985-2015)

The NPP products of MODIS in Sanjiangyuan (1985-2015)

The data set contains NPP products data produced by the maximum synthesis method of the three source regions of the Yellow River, the Yangtze River and the Lancang River. The data of remote sensing products MOD13Q1, MOD17A2, and MOD17A2H are available on the NASA website (http://modis.gsfc.nasa.gov/). The MOD13Q1 product is a 16-d synthetic product with a resolution of 250 m. The MOD17A2 and MOD17A2H product data are 8-d synthetic products, the resolution of MOD17A2 is 1 000 m, and the resolution of MOD17A2H is 500 m. The final synthetic NPP product of MODIS has a resolution of 1 km. The downloaded MOD13Q1, MOD17A2, and MOD17A2H remote sensing data products are in HDF format. The data have been processed by atmospheric correction, radiation correction, geometric correction, and cloud removal. 1) MRT projection conversion. Convert the format and projection of the downloaded data product, convert the HDF format to TIFF format, convert the projection to the UTM projection, and output NDVI with a resolution of 250 m, EVI with a resolution 250 m, and PSNnet with resolutions of 1 000 m and 500 m. 2) MVC maximum synthesis. Synthesize NDVI, EVI, and PSNnet synchronized with the ground measured data by the maximum value to obtain values corresponding to the measured data. The maximum synthesis method can effectively reduce the effects of clouds, the atmosphere, and solar elevation angles. 3) NPP annual value generated from the NASA-CASA model.

Citation

Yanqiang Wei. The NPP products of MODIS in Sanjiangyuan. Space-Air-Field Integrated Eco-Monitoring and Data Infrastructure of the Three-River-Source National Park.2018

Copyright & License

To respect the intellectual property rights, protect the rights of data authors, expand services of the data center, and evaluate the application potential of data, data users should clearly indicate the source of the data and the author of the data in the research results generated by using the data (including published papers, articles, data products, and unpublished research reports, data products and other results). For re-posting (second or multiple releases) data, the author must also indicate the source of the original data.

Related Resources
Comments

Sign In to add comments

Keywords
Geographic coverage
Details
  • Format: TIFF
  • File size: 20.0 MB
  • Browse count:11965次
  • Time range:1985-01-18 至 2016-01-17
  • Access: online
下载数据
Contacts

Resource Provider: Kamel Didan*, Armando Barreto Munoz, Ramon Solano, Alfredo Huete  

导出元数据
Word