High Spatial Resolution T-ReCS Mid-Infrared Imaging of Luminous Infrared Galaxies

We report mid-infrared images of several luminous infrared galaxies (LIGs) taken with ISOCAM on the Infrared Space Observatory (ISO). These LIGs were chosen to represent different phases of a merger sequence of galaxy-galaxy interaction with special emphasis on early/intermediate stages of merging. The molecular gas distribution of these LIGs has also been mapped at high spatial resolution (see contribution by Gao et al., this volume). The goal is to do a synoptic study of the evolution of physical conditions in these LIGs along the merger sequence.

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SUBARU AND GEMINI HIGH SPATIAL RESOLUTION INFRARED 18 μm IMAGING OBSERVATIONS OF NEARBY LUMINOUS INFRARED GALAXIES

The Astronomical Journal ◽

10.1088/0004-6256/141/5/156 ◽

2011 ◽

Vol 141 (5) ◽

pp. 156 ◽

Cited By ~ 24

Author(s):

Masatoshi Imanishi ◽

Keisuke Imase ◽

Nagisa Oi ◽

Kohei Ichikawa

Keyword(s):

Spatial Resolution ◽

High Spatial Resolution ◽

Infrared Galaxies ◽

Luminous Infrared Galaxies

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ULTRA-DEEP MID-INFRARED SPECTROSCOPY OF LUMINOUS INFRARED GALAXIES ATz∼ 1 ANDz∼ 2

The Astrophysical Journal ◽

10.1088/0004-637x/719/1/425 ◽

2010 ◽

Vol 719 (1) ◽

pp. 425-450 ◽

Cited By ~ 48

Author(s):

Dario Fadda ◽

Lin Yan ◽

Guilaine Lagache ◽

Anna Sajina ◽

Dieter Lutz ◽

...

Keyword(s):

Infrared Spectroscopy ◽

Infrared Galaxies ◽

Mid Infrared ◽

Mid Infrared Spectroscopy ◽

Luminous Infrared Galaxies

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A Blended Sea Ice Concentration Product from AMSR2 and VIIRS

Remote Sensing ◽

10.3390/rs13152982 ◽

2021 ◽

Vol 13 (15) ◽

pp. 2982

Author(s):

Richard Dworak ◽

Yinghui Liu ◽

Jeffrey Key ◽

Walter N. Meier

Keyword(s):

Sea Ice ◽

Spatial Resolution ◽

Infrared Imaging ◽

High Spatial Resolution ◽

Sea Ice Concentration ◽

Clear Sky ◽

Ice Concentration ◽

Best Linear Unbiased ◽

The Individual ◽

Sky Conditions

An effective blended Sea-Ice Concentration (SIC) product has been developed that utilizes ice concentrations from passive microwave and visible/infrared satellite instruments, specifically the Advanced Microwave Scanning Radiometer-2 (AMSR2) and the Visible Infrared Imaging Radiometer Suite (VIIRS). The blending takes advantage of the all-sky capability of the AMSR2 sensor and the high spatial resolution of VIIRS, though it utilizes only the clear sky characteristics of VIIRS. After both VIIRS and AMSR2 images are remapped to a 1 km EASE-Grid version 2, a Best Linear Unbiased Estimator (BLUE) method is used to combine the AMSR2 and VIIRS SIC for a blended product at 1 km resolution under clear-sky conditions. Under cloudy-sky conditions the AMSR2 SIC with bias correction is used. For validation, high spatial resolution Landsat data are collocated with VIIRS and AMSR2 from 1 February 2017 to 31 October 2019. Bias, standard deviation, and root mean squared errors are calculated for the SICs of VIIRS, AMSR2, and the blended field. The blended SIC outperforms the individual VIIRS and AMSR2 SICs. The higher spatial resolution VIIRS data provide beneficial information to improve upon AMSR2 SIC under clear-sky conditions, especially during the summer melt season, as the AMSR2 SIC has a consistent negative bias near and above the melting point.

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Contributions of Operational Satellites in Monitoring the Catastrophic Floodwaters Due to Hurricane Harvey

Remote Sensing ◽

10.3390/rs10081256 ◽

2018 ◽

Vol 10 (8) ◽

pp. 1256 ◽

Cited By ~ 9

Author(s):

Mitchell Goldberg ◽

Sanmei Li ◽

Steven Goodman ◽

Dan Lindsey ◽

Bill Sjoberg ◽

...

Keyword(s):

United States ◽

Emergency Management ◽

Spatial Resolution ◽

Infrared Imaging ◽

High Spatial Resolution ◽

Economic Loss ◽

The United States ◽

Flood Monitoring ◽

Flooded Areas ◽

Flood Maps

Hurricane Harvey made landfall as a Category-4 storm in the United States on 25 August 2017 in Texas, causing catastrophic flooding in the Houston metropolitan area and resulting in a total economic loss estimated to be about $125 billion. To monitor flooding in the areas affected by Harvey, we used data from sensors aboard the Suomi National Polar-Orbiting Partnership Satellite (SNPP) and the new Geostationary Operational Environmental Satellite (GOES)-16. The GOES-16 Advanced Baseline Imager (ABI) observations are available every 5 min at 1-km spatial resolution across the entire United States, allowing for the possibility of frequent cloud free views of the flooded areas; while the higher resolution 375-m imagery available twice per day from the Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the SNPP satellite can observe more details of the flooded regions. Combining the high spatial resolution from VIIRS with the frequent observations from ABI offers an improved capability for flood monitoring. The flood maps derived from the SNPP VIIRS and GOES-16 ABI observations were provided to the Federal Emergency Management Agency (FEMA) continuously during Hurricane Harvey. According to FEMA’s estimate on 3 September 2017, approximately 155,000 properties might have been affected by the floodwaters of Hurricane Harvey.

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