Vhengani, LMGriffith, DLysko, M2012-02-172012-02-172011-07Vhengani, LM, Griffith, D and Lysko, M. 2011. Campaign for vicarious calibration of SumbandilaSat in Argentina. Conference of the South African Institute of Physics (SAIP), Saint George Hotel, Irene, 12-15 July 2011, pp 555-560978-1-86888-688-3http://www.saip.org.za/images/stories/documents/SAIP_Proceedings/SAIP2011_Proceedings.djvuhttp://hdl.handle.net/10204/5578Conference of the South African Institute of Physics (SAIP), Saint George Hotel, Irene, 12-15 July 2011The importance of calibrating satellite imagers has been explained in literature such as K Arai (2007) and K J Thome (2001). Calibration of satellite sensors (imagers) is crucial for data consistency, reliability and comparability. To perform a meaningful analysis of a satellite image, the Digital Numbers (DNs) of the image are first converted to absolute radiance by using the sensor-specific radiometric calibration coefficients. Satellite imagers are calibrated pre-launch and for continuous assessment, they are also calibrated post-launch. Various post-launch techniques exist including cross-sensor, solar, lunar and vicarious calibration. Vicarious calibration relies on in-situ measurements of surface reflectance and atmospheric transmittance to estimate Top-Of-Atmosphere (TOA) spectral radiance. A vicarious calibration field campaign was executed in Argentina to support monitoring of the radiometric response of the multispectral imager aboard SumbandilaSat. Results obtained using two Radiative Transfer Codes (RTCs) MODTRAN and 6SV are presented.enSumbandilaSatCalValVicarious calibrationRadiometric calibrationReflectance-Based methodologyConference PresentationVhengani, L., Griffith, D., & Lysko, M. (2011). Campaign for vicarious calibration of SumbandilaSat in Argentina. South African Institute of Physics. http://hdl.handle.net/10204/5578Vhengani, LM, D Griffith, and M Lysko. "Campaign for vicarious calibration of SumbandilaSat in Argentina." (2011): http://hdl.handle.net/10204/5578Vhengani L, Griffith D, Lysko M, Campaign for vicarious calibration of SumbandilaSat in Argentina; South African Institute of Physics; 2011. http://hdl.handle.net/10204/5578 .TY - Conference Presentation AU - Vhengani, LM AU - Griffith, D AU - Lysko, M AB - The importance of calibrating satellite imagers has been explained in literature such as K Arai (2007) and K J Thome (2001). Calibration of satellite sensors (imagers) is crucial for data consistency, reliability and comparability. To perform a meaningful analysis of a satellite image, the Digital Numbers (DNs) of the image are first converted to absolute radiance by using the sensor-specific radiometric calibration coefficients. Satellite imagers are calibrated pre-launch and for continuous assessment, they are also calibrated post-launch. Various post-launch techniques exist including cross-sensor, solar, lunar and vicarious calibration. Vicarious calibration relies on in-situ measurements of surface reflectance and atmospheric transmittance to estimate Top-Of-Atmosphere (TOA) spectral radiance. A vicarious calibration field campaign was executed in Argentina to support monitoring of the radiometric response of the multispectral imager aboard SumbandilaSat. Results obtained using two Radiative Transfer Codes (RTCs) MODTRAN and 6SV are presented. DA - 2011-07 DB - ResearchSpace DP - CSIR KW - SumbandilaSat KW - CalVal KW - Vicarious calibration KW - Radiometric calibration KW - Reflectance-Based methodology LK - https://researchspace.csir.co.za PY - 2011 SM - 978-1-86888-688-3 T1 - Campaign for vicarious calibration of SumbandilaSat in Argentina TI - Campaign for vicarious calibration of SumbandilaSat in Argentina UR - http://hdl.handle.net/10204/5578 ER -