TY  - JOUR
A1  - Reiners, Philipp
A1  - Asam, Sarah
A1  - Frey, Corinne
A1  - Holzwarth, Stefanie
A1  - Bachmann, Martin
A1  - Sobrino, Jose
A1  - Göttsche, Frank-M.
A1  - Bendix, Jörg
A1  - Kuenzer, Claudia
T1  - Validation of AVHRR Land Surface Temperature with MODIS and in situ LST — a TIMELINE thematic processor
JF  - Remote Sensing
N2  - Land Surface Temperature (LST) is an important parameter for tracing the impact of changing climatic conditions on our environment. Describing the interface between long- and shortwave radiation fluxes, as well as between turbulent heat fluxes and the ground heat flux, LST plays a crucial role in the global heat balance. Satellite-derived LST is an indispensable tool for monitoring these changes consistently over large areas and for long time periods. Data from the AVHRR (Advanced Very High-Resolution Radiometer) sensors have been available since the early 1980s. In the TIMELINE project, LST is derived for the entire operating period of AVHRR sensors over Europe at a 1 km spatial resolution. In this study, we present the validation results for the TIMELINE AVHRR daytime LST. The validation approach consists of an assessment of the temporal consistency of the AVHRR LST time series, an inter-comparison between AVHRR LST and in situ LST, and a comparison of the AVHRR LST product with concurrent MODIS (Moderate Resolution Imaging Spectroradiometer) LST. The results indicate the successful derivation of stable LST time series from multi-decadal AVHRR data. The validation results were investigated regarding different LST, TCWV and VA, as well as land cover classes. The comparisons between the TIMELINE LST product and the reference datasets show seasonal and land cover-related patterns. The LST level was found to be the most determinative factor of the error. On average, an absolute deviation of the AVHRR LST by 1.83 K from in situ LST, as well as a difference of 2.34 K from the MODIS product, was observed.
KW  - Land Surface Temperature
KW  - AVHRR
KW  - MODIS
KW  - time series
KW  - Europe
KW  - validation
KW  - TIMELINE
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-246051
SN  - 2072-4292
VL  - 13
IS  - 17
ER  - 
TY  - JOUR
A1  - Timmermans, Wim J.
A1  - van der Tol, Christiaan
A1  - Timmermans, Joris
A1  - Ucer, Murat
A1  - Chen, Xuelong
A1  - Alonso, Luis
A1  - Moreno, Jose
A1  - Carrara, Arnaud
A1  - Lopez, Ramon
A1  - Fernando de la Cruz, Tercero
A1  - Corcoles, Horacio L.
A1  - de Miguel, Eduardo
A1  - Sanchez, Jose A. G.
A1  - Perez, Irene
A1  - Belen, Perez
A1  - Munoz, Juan-Carlos J.
A1  - Skokovic, Drazen
A1  - Sobrino, Jose
A1  - Soria, Guillem
A1  - MacArthur, Alasdair
A1  - Vescovo, Loris
A1  - Reusen, Ils
A1  - Andreu, Ana
A1  - Burkart, Andreas
A1  - Cilia, Chiara
A1  - Contreras, Sergio
A1  - Corbari, Chiara
A1  - Calleja, Javier F.
A1  - Guzinski, Radoslaw
A1  - Hellmann, Christine
A1  - Herrmann, Ittai
A1  - Kerr, Gregoire
A1  - Lazar, Adina-Laura
A1  - Leutner, Benjamin
A1  - Mendiguren, Gorka
A1  - Nasilowska, Sylwia
A1  - Nieto, Hector
A1  - Pachego-Labrador, Javier
A1  - Pulanekar, Survana
A1  - Raj, Rahul
A1  - Schikling, Anke
A1  - Siegmann, Bastian
A1  - von Bueren, Stefanie
A1  - Su, Zhongbo (Bob)
T1  - An Overview of the Regional Experiments for Land-atmosphere Exchanges 2012 (REFLEX 2012) Campaign
JF  - Acta Geophysica
N2  - The REFLEX 2012 campaign was initiated as part of a training course on the organization of an airborne campaign to support advancement of the understanding of land-atmosphere interaction processes. This article describes the campaign, its objectives and observations, remote as well as in situ. The observations took place at the experimental Las Tiesas farm in an agricultural area in the south of Spain. During the period of ten days, measurements were made to capture the main processes controlling the local and regional land-atmosphere exchanges. Apart from multi-temporal, multi-directional and multi-spatial space-borne and airborne observations, measurements of the local meteorology, energy fluxes, soil temperature profiles, soil moisture profiles, surface temperature, canopy structure as well as leaf-level measurements were carried out. Additional thermo-dynamical monitoring took place at selected sites. After presenting the different types of measurements, some examples are given to illustrate the potential of the observations made.
KW  - multi scale heterogeneity
KW  - quantitative remote sensing
KW  - remote
KW  - evapotranspiration
KW  - validation
KW  - issues
KW  - energy
KW  - models
KW  - water
KW  - flux
KW  - land-atmosphere interaction
KW  - turbulence
KW  - calibration and validation
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-136491
VL  - 63
IS  - 6
ER  -