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The observational data of the Terra satellite is received in Tokai University space infomation center every day, and data that does the correction processing is transmitted to Geographical Survey Institute. Afterwards, Geographical Survey Institute processes the calculation of the vegetation index and the image compositing, etc. , and is making it as 250m vegetation index data.It is the main work flow as follows.
| Allotment | Process |
|---|---|
| Tokai University | Reception of MODIS data |
| ↓ | |
| Correction processing and data transfer of data | |
| ↓ | |
| Geographical Survey Institute | Cutting out and geometric correction processing in range of object |
| ↓ | |
| Calculation of NDVI value | |
| ↓ | |
| Image compositing processing(maximum NDVI method) | |
| ↓ | |
| Mask processing(mask by sea, lakes and marshes, and river data) | |
| ↓ | |
| Offer of 250m vegetation index data |