The 30m / month synthetic vegetation coverage (FVC) data set of Heihe River basin provides the monthly FVC synthetic products from 2011 to 2014. The data uses the characteristics of domestic satellite HJ / CCD data with high temporal resolution (2 days after Networking) and spatial resolution (30M) to construct a multi angle observation data set, which divides the country into different vegetation divisions and land types, Calculate the conversion coefficient between vegetation index (NDVI) and FVC respectively, and use the calculated conversion coefficient lookup table and monthly synthetic FVC products in the production area of monthly synthetic NDVI products
Synthetic FVC products at 30m / month in Heihe River basin can directly obtain the vegetation coverage ratio through high-resolution data, so as to reduce the impact of heterogeneity of low-resolution data; In addition, the typical period of vegetation growth and change is selected, and the growth curve parameters corresponding to each pixel are obtained by fitting the vegetation index of each pixel time series; Then, combined with the land use map and vegetation classification map, find the representative uniform pixels of the region for training the conversion coefficient of vegetation index
Compared with the aster reference FVC results, the value of 30m / month synthetic FVC products in Heihe River Basin is slightly higher than the aster reference FVC results, but the overall deviation is not large, and the maximum root mean square error (RMSE) between products and reference values is less than 0.175. In addition, compared with the ground measurement data of Hebei Huailai experimental field, the 30m / month synthetic FVC product generally reflects the seasonal change of vegetation growth, and the deviation from the ground measurement data is less than 0.1; At the same time, compared with the ground measurement results of vegetation coverage in many watersheds in Northeast, North and Southeast China, the overall error between 30m / month synthetic FVC product and ground measurement data is less than 0.2
In short, the 30m / month synthetic FVC data set in Heihe River basin makes comprehensive use of multi temporal and multi angle remote sensing data to improve the estimation accuracy and time resolution of FVC parameter products and better serve the application of remote sensing data products
| collect time | 2011/01/01 - 2015/01/01 |
|---|---|
| collect place | Heihe River Basin, artificial oasis test area in the middle reaches, hydrological test area in the upper cold area, and natural oasis test area in the lower reaches |
| data size | 5.9 GiB |
| data format | TIFF |
| Coordinate system | WGS84 |
| Projection | / |
The 30m / month synthetic vegetation coverage (FVC) data set of Heihe River basin provides the monthly FVC synthetic products from 2011 to 2014. The data uses the characteristics of domestic satellite HJ / CCD data with high temporal resolution (2 days after Networking) and spatial resolution (30M) to construct a multi angle observation data set
Divide the country into different vegetation divisions and land types, calculate the conversion coefficient between vegetation index (NDVI) and FVC respectively, and use the calculated conversion coefficient lookup table and monthly synthetic NDVI product production areas to synthesize FVC products monthly
Good data quality
| # | number | name | type |
| 1 | 2013AA12A301 | National High-tech R&D Program of China (863 Program) | |
| 2 | 2012AA12A304 | National Natural Science Foundation of China |
This work is licensed under a
Creative
Commons Attribution 4.0 International License.
| # | title | file size |
|---|---|---|
| 1 | 2011.zip | 1.5 GiB |
| 2 | 2012.zip | 1.6 GiB |
| 3 | 2013.zip | 1.4 GiB |
| 4 | 2014.zip | 1.4 GiB |
| 5 | _ncdc_meta_.json | 7.6 KiB |
| 6 | 黑河流域30m月合成FVC数据说明文档.txt | 257 Bytes |
Vegetation coverage remote sensing products ecological remote sensing products LUCC data
Heihe River Basin artificial oasis test area in the middle reaches hydrological test area in the upper cold area and natural oasis test area in the lower reaches
©Copyright 2005-. Northwest Institute of Eco-Environment and Resources, CAS.
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