On the retrieval of lava-flow surface temperatures from infrared satellite data

Abstract

Research Article| October 01, 2003 On the retrieval of lava-flow surface temperatures from infrared satellite data Robert Wright; Robert Wright 1Hawaii Institute of Geophysics and Planetology, University of Hawaii, 2525 Correa Road, Honolulu, Hawaii 96822, USA Search for other works by this author on: GSW Google Scholar Luke P. Flynn Luke P. Flynn 1Hawaii Institute of Geophysics and Planetology, University of Hawaii, 2525 Correa Road, Honolulu, Hawaii 96822, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Robert Wright 1Hawaii Institute of Geophysics and Planetology, University of Hawaii, 2525 Correa Road, Honolulu, Hawaii 96822, USA Luke P. Flynn 1Hawaii Institute of Geophysics and Planetology, University of Hawaii, 2525 Correa Road, Honolulu, Hawaii 96822, USA Publisher: Geological Society of America Received: 03 Mar 2003 Revision Received: 03 Jul 2003 Accepted: 05 Jul 2003 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2003) 31 (10): 893–896. https://doi.org/10.1130/G19645.1 Article history Received: 03 Mar 2003 Revision Received: 03 Jul 2003 Accepted: 05 Jul 2003 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Robert Wright, Luke P. Flynn; On the retrieval of lava-flow surface temperatures from infrared satellite data. Geology 2003;; 31 (10): 893–896. doi: https://doi.org/10.1130/G19645.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The dual-band method has been widely used as the basis for determining lava surface temperatures from infrared satellite data; the method is based on the assumption that such surfaces can be described in terms of two end-member thermal components—hot cracks within a thermally homogeneous crust. The recent launch of the first orbiting hyperspectral imaging system, Hyperion, onboard the National Aeronautics and Space Administration Earth Observing-1 (EO-1) satellite heralds a new era of space-based hyperspectral data collection that will allow more detailed models of lava-flow surface temperatures to be developed and parameterized. To this end, we have analyzed thermal images of active pahoehoe lava flows collected on Kilauea volcano, Hawaii, by using a forward-looking infrared (FLIR) 595 PM ThermaCAM, in order to assess the number of thermal components required to characterize the surface temperatures of active lava-flow surfaces. The FLIR images show that an active lava-flow surface comprises a continuum of temperatures that define distinctive temperature distributions. Numerical model results reveal that the two-component dual-band method fails to resolve any of the major properties of the temperature distributions contained in these data (i.e., mode, skew, range, or dispersion). However, modeling five to seven thermal components allows all significant properties of the subpixel temperature distributions contained within the FLIR images to be determined. Thus, although the hyperspectral data provided by the EO-1 Hyperion yield as many as 66 wavebands in the 0.5–2.5 μm atmospheric window, useable data in 9–13 of these should be sufficient to perform accurate temperature characterization of active lava-flow surfaces from space. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.