Somebody please help me. I have a question that why the "blue band" was not included in SPOT-HRV sensor?
On Landsat 4 - TM sensor which have "blue band" from 1982. Why SPOT-1 (1986) and even SPOT-6 (2004) does not have "blue band". The bue band is important which is used to monitor sediment in water, mapping coral reefs, and water depth. So why they did not make that band in SPOT? Is it difficult to make or something? Please help me. Thank you.