Effects of varying environmental conditions on emissivity spectra of bulk lunar soils: Application to Diviner thermal infrared observations of the Moon

Icarus ◽  
2017 ◽  
Vol 283 ◽  
pp. 326-342 ◽  
Author(s):  
K.L. Donaldson Hanna ◽  
B.T. Greenhagen ◽  
W.R. Patterson ◽  
C.M. Pieters ◽  
J.F. Mustard ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Thermal Infrared ◽  
The Moon ◽  
Infrared Observations ◽  
Lunar Soils ◽  
Emissivity Spectra

Landsat thermal infrared to detect sub-canopy riparian flooding

2021 ◽  
Author(s):  
Emanuel Storey ◽  
Witold Krajewski ◽  
Efthymios Nikolopoulos
Keyword(s):  
Open Water ◽  
Thermal Infrared ◽  
Short Wave ◽  
Mapping Technique ◽  
Landsat 8 ◽  
Infrared Observations ◽  
Plant Canopies ◽  
Multi Temporal ◽  
Flood Detection

<p>Satellite based flood detection can enhance understanding of risk to humans and infrastructures, geomorphic processes, and ecological effects.  Such application of optical satellite imagery has been mostly limited to the detection of water exposed to sky, as plant canopies tend to obstruct water visibility in short electromagnetic wavelengths.  This case study evaluates the utility in multi-temporal thermal infrared observations from Landsat 8 as a basis for detecting sub-canopy fluvial inundation resulting in ambient temperature change.</p><p>We selected three flood events of 2016 and 2019 along sections of the Mississippi, Cedar, and Wapsipinicon Rivers located in Iowa, Minnesota, and Wisconsin, United States.  Classification of sub-canopy water involved logical, threshold-exceedance criteria to capture thermal decline within channel-adjacent vegetated zones.  Open water extent in the floods was mapped based on short-wave infrared thresholds determined parametrically from baseline (non-flooded) observations.  Map accuracy was evaluated using higher-resolution (0.5–5.0 m) synchronic optical imagery.</p><p>Results demonstrate improved ability to detect sub-canopy inundation when thermal infrared change is incorporated: sub-canopy flood class accuracy was comparable to that of open water in previous studies.  The multi-temporal open-water mapping technique yielded high accuracy as compared to similar studies.  This research highlights the utility of Landsat thermal infrared data for monitoring riparian inundation and for validating other remotely sensed and simulated flood maps.</p>

scholarly journals Practical retrieval of land surface emissivity spectra in 8-14μm from hyperspectral thermal infrared data

2012 ◽  
Vol 20 (22) ◽  
pp. 24761 ◽  
Author(s):  
Hua Wu ◽  
Ning Wang ◽  
Li Ni ◽  
Bo-Hui Tang ◽  
Zhao-Liang Li
Keyword(s):  
Land Surface ◽  
Thermal Infrared ◽  
Surface Emissivity ◽  
Land Surface Emissivity ◽  
Emissivity Spectra ◽  
Infrared Data

scholarly journals Close Cassini flybys of Saturn’s ring moons Pan, Daphnis, Atlas, Pandora, and Epimetheus

Science ◽  
2019 ◽  
Vol 364 (6445) ◽  
pp. eaat2349 ◽  
Author(s):  
B. J. Buratti ◽  
P. C. Thomas ◽  
E. Roussos ◽  
C. Howett ◽  
M. Seiß ◽  
...  
Keyword(s):  
Optical Properties ◽  
Water Vapor ◽  
Thermal Infrared ◽  
Ring System ◽  
The Moon ◽  
Volcanic Plumes ◽  
Cassini Mission ◽  
Main Ring

Saturn’s main ring system is associated with a set of small moons that either are embedded within it or interact with the rings to alter their shape and composition. Five close flybys of the moons Pan, Daphnis, Atlas, Pandora, and Epimetheus were performed between December 2016 and April 2017 during the ring-grazing orbits of the Cassini mission. Data on the moons’ morphology, structure, particle environment, and composition were returned, along with images in the ultraviolet and thermal infrared. We find that the optical properties of the moons’ surfaces are determined by two competing processes: contamination by a red material formed in Saturn’s main ring system and accretion of bright icy particles or water vapor from volcanic plumes originating on the moon Enceladus.

scholarly journals Influence of Component Temperature Derivation from Dual Angle Thermal Infrared Observations on TSEB Flux Estimates Over an Irrigated Vineyard

2015 ◽  
Vol 63 (6) ◽  
pp. 1540-1570 ◽  
Author(s):  
Ana Andreu ◽  
Wim J. Timmermans ◽  
Drazen Skokovic ◽  
Maria P. Gonzalez-Dugo
Keyword(s):  
Thermal Infrared ◽  
Infrared Observations ◽  
Component Temperature ◽  
Dual Angle
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