Shortly named as UTUVA (Satellite Based National Data Archive), the project produces maps of hydrology, agriculture, transport, energy, tourism, meteorology and such maps that several disciplines require as; cloud, snow covered area, albedo, vegetation index, snow water equivalent, sun radiation and surface temperature are produced daily and real-time and data starting from the year 2000 are archived.
High reflection values that snow make in visual bandwidth are used in order to describe snow covered area with satellite images. While UTUVA effective snow cover area product was developed, MOD09GA products -atmospherically corrected surface reflection values- of MODIS satellite were used. NDSI (Normalized Difference Snow Index) that is widely used in snow covered area studies was also used for UTUVA effective snow cover area product’s production. UTUVA snow product is produced in daily basis with 500 meters spatial resolution. Percentage of snow cover of every pixel is provided by the product.
It was planned to develop 7 products in the scope of UTUVA. However, the target is increasing the product number to 20 in the future. Explanations below are given for 7 products that their trial version will be released in near future.
Is there any other similar UTUVA product? What makes it better?
- Albedo Maps
- Snow and Glacier Cover Maps
- Snow water Equivalent Maps
- Cloud Maps
- Surface Temperature Maps
- Vegetation Index Maps (Existence of green vegetation cover)
- Daily Sun Radiation Maps
Samples of satellite based data production in the world are generally one satellite centered and in global scale. However, it is essential to produce products that are specific to our country, suitable to geographic conditions of our country, supported with surface data and evaluated by a time series. The focus of the project is to develop unique products via blending surface data with different attributed satellites’ data and finally presenting the data to the users by a platform.