August 15, 2023 Cawse-Nicholson, K., P. A. Townsend, D. Schimel, A. M. Assiri, et al. 2021, NASA’s surface biology and geology designated observable: A perspective on surface imaging algorithms. Remote Sensing of Environment 257(2021);12349. Home » Cawse-Nicholson, K., P. A. Townsend, D. Schimel, A. M. Assiri, et al. 2021, NASA’s surface biology and geology designated observable: A perspective on surface imaging algorithms. Remote Sensing of Environment 257(2021);12349.