Landsat and local land surface temperatures in a heterogeneous terrain compared to MODIS values
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Landsat and local land surface temperatures in a heterogeneous terrain compared to MODIS values

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Landsat and local land surface temperatures in a heterogeneous terrain compared to MODIS values

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dc.contributor.author Simó, Gemma
dc.contributor.author García Santos, Vicente
dc.contributor.author Jiménez, Maria A.
dc.contributor.author Martínez-Villagrasa, Daniel
dc.contributor.author Picos, Rodrigo
dc.contributor.author Caselles Miralles, Vicente
dc.contributor.author Cuxart, Joan
dc.date.accessioned 2017-05-16T13:57:07Z
dc.date.available 2017-05-16T13:57:07Z
dc.date.issued 2016
dc.identifier.uri http://hdl.handle.net/10550/58546
dc.description.abstract Land Surface Temperature (LST) as provided by remote sensing onboard satellites is a key parameter for a number of applications in Earth System studies, such as numerical modelling or regional estimation of surface energy and water fluxes. In the case of Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Terra or Aqua, pixels have resolutions near 1 km2 , LST values being an average of the real subpixel variability of LST, which can be significant for heterogeneous terrain. Here, we use Landsat 7 LST decametre-scale fields to evaluate the temporal and spatial variability at the kilometre scale and compare the resulting average values to those provided by MODIS for the same observation time, for the very heterogeneous Campus of the University of the Balearic Islands (Mallorca, Western Mediterranean), with an area of about 1 km2 , for a period between 2014 and 2016. Variations of LST between 10 and 20 K are often found at the sub-kilometre scale. In addition, MODIS values are compared to the ground truth for one point in the Campus, as obtained from a four-component net radiometer, and a bias of 3.2 K was found in addition to a Root Mean Square Error (RMSE) of 4.2 K. An indication of a more elaborated local measurement strategy in the Campus is given, using an array of radiometers distributed in the area.
dc.language.iso eng
dc.relation.ispartof Remote Sensing, 2016, vol. 8, num. 10
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Simó, Gemma García Santos, Vicente Jiménez, Maria A. Martínez-Villagrasa, Daniel Picos, Rodrigo Caselles Miralles, Vicente Cuxart, Joan 2016 Landsat and local land surface temperatures in a heterogeneous terrain compared to MODIS values Remote Sensing 8 10
dc.subject Termodinàmica
dc.subject Superfícies (Fisica)
dc.title Landsat and local land surface temperatures in a heterogeneous terrain compared to MODIS values
dc.type info:eu-repo/semantics/article
dc.date.updated 2017-05-16T13:57:08Z
dc.identifier.doi https://doi.org/10.3390/rs8100849
dc.identifier.idgrec 117655

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