Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 4, pp. 149-154
Some features of L-band thermal radiation of freshwater bodies with ice cover
I.V. Khvostov
1 , A.N. Romanov
1 , V.V. Tikhonov
2, 3 , E.A. Sharkov
2 1 Institute for Water and Environmental Problems SB RAS, Barnaul, Russia
2 Space Research Institute RAS, Moscow, Russia
3 Moscow Institute of Physics and Technology (State University), Moscow, Russia
Accepted: 25.05.2017
DOI: 10.21046/2070-7401-2017-14-4-149-154
By the examples of the lakes Baikal, Ladoga (Russia) and Huron (USA-Canada), temporal variations of brightness temperature of large freshwater lakes were explored based on satellite microwave radiometry data. Three characteristic brightness temperature regions were revealed. The first area is associated with ice-free water surface, the second with stable ice cover on the surface. In the third region, typical of the period of ice melting, a short-term sharp increase in brightness temperature by 40–90 K was noted. This effect is associated with the change in physical properties of ice during destruction and melting, causing an increase in brightness temperature of the ice cover and screening of microwave radiation coming from the water surface. The conclusions are confirmed by model calculations. The detected effect allows predicting the spring change in the ice situation of large freshwater areas based on satellite data.
Keywords: microwave radiation, freshwater lakes, SMOS mission
Full textReferences:
- Baikal: priroda i lyudi (Baikal: Nature and people), Ulan-Ude: Izdatel’skii dom EKOS, 2008, 600 p.
- Galaziya G., Baikal v voprosakh i otvetakh (Baikal in questions and answers), Irkutsk: Vostochno-Sibirskoe knizhnoe izdatel’stvo, 1984, 368 p.
- Rumyantsev V.A., Ladozhskoe ozero i dostoprimechatel’nosti ego poberezh’ya (Lake Ladoga and the sights of its coast), Saint-Petersburg: Nestor-Istoriya, 2015, 200 p.
- Rumyantsev V.A., Drabkova V.G., Izmailova A.V., Velikie ozera mira (Great Lakes of the World), Saint-Petersburg: Lema, 2012, 370 p.
- Chu T., Lindenschmidt K-E., Integration of space-borne and air-borne data in monitoring river ice processes in the Slave River, Canada, Remote Sensing of Environment, 2016, Vol. 181, pp. 65–81.
- Gunn G.E., Duguay C.R., Brown L.C., King J., Atwood D., Kasurak A., Freshwater lake ice thickness derived using surface-based X- and Ku-band FMCW scatterometers, Cold Regions Science and Technology, 2015, Vol. 120, pp. 115–126.
- Gutierrez A., Castro R., Vieira P., SMOS L1 Processor L1c Data Processing Model. SO-DS-DME-L1OP-0009. No. 2.14, 2014, 80 p., available at: https://earth.esa.int/documents/10174/1854456/SMOS_L1c-Data-Processing-Models
- Kang K.-K., Duguay C.R., Lemmetyinen J., Gel Y., Estimation of ice thickness on large northern lakes from AMSR-E brightness temperature measurements, Remote Sensing of Environment, 2014, Vol. 150, pp. 1–19.
- Kouraev A.V., Semovski S.V., Shimaraev M.N., Mognard N.M., Légresy B., Remy F., Observations of Lake Baikal ice from satellite altimetry and radiometry, Remote Sensing of Environment, 2007, Vol. 108, No. 3, pp. 240–253.
- Lemmetyinen J., Kontu A., Kärnä J-P., Vehviläinen J., Takala M., Pulliainen J., Correcting for the influence of frozen lakes in satellite microwave radiometer observations through application of a microwave emission model, Remote Sensing of Environment, 2011, Vol. 115, No. 12, pp. 3695–3706.
- Sahr K., White D., Kimerling A.J., Geodesic Discrete Global Grid System, Cartography and Geographic Information Science, 2010, No. 30, pp. 121–134.
- Tikhonov V.V., Boyarskii D.A., Sharkov E.A., Raev M.D., Repina I.A., Ivanov V.V., Alexeeva T.A., Komarova N.Yu., Microwave Model of Radiation from the Multilayer “Ocean-atmosphere” System for Remote Sensing Studies of the Polar Regions, Progress in Electromagnetics Research B, 2014, Vol. 59, pp. 123–133.