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Storm Chasing with the INCUS Mission
Susan C. Van Den Heever;Ziad Haddad;Simone Tanelli;Derek Posselt;Kristen Rasmussen;Graeme Stephens;Yunjin Kim;Rachael Auth;Jennie Bukowski;Amy M. Burzynski;Randy Chase;Brenda Dolan;Sean Freeman;Patrick Gatlin;Leah Grant;George J. Huffman;Pavlos Kollias;Gabrielle Leung;Zhengzhao Johnny Luo;Gerald Mace;Peter Marinescu;Mary Morris;Philip Partain;Walter A. Petersen;Sai Prasanth;Steven C. Reising;Rick Schulte;Courtney Schumacher;Itinderjot Singh;Rachel Storer;Ousmane Sy;Hanii Takahashi
2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)
Year: 2025 | Conference Paper |
The overarching goal of the NASA INvestigation of Convective UpdraftS (INCUS) mission is to enhance our understanding of why, when and where tropical convective storms form, and why only some of these storms produce extreme weather. Convective storms transport air and water between Earth's surface and the upper troposphere. This vertical transport of air and water - often referred to as convective...Show More
Storm Chasing with the INCUS Mission
Susan C. Van Den Heever;Ziad Haddad;Simone Tanelli;Derek Posselt;Kristen Rasmussen;Graeme Stephens;Yunjin Kim;Rachael Auth;Jennie Bukowski;Amy M. Burzynski;Randy Chase;Brenda Dolan;Sean Freeman;Patrick Gatlin;Leah Grant;George J. Huffman;Pavlos Kollias;Gabrielle Leung;Zhengzhao Johnny Luo;Gerald Mace;Peter Marinescu;Mary Morris;Philip Partain;Walter A. Petersen;Sai Prasanth;Steven C. Reising;Rick Schulte;Courtney Schumacher;Itinderjot Singh;Rachel Storer;Ousmane Sy;Hanii Takahashi
Year: 2025 | Conference Paper |
A Probabilistic Approach to Mapping Inland Water Bodies with GNSS-R
Mary Morris;Hai Nguyen;Matthew Bonnema;Cédric H. David;Eric Loria
IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
Year: 2022 | Conference Paper |
Cited by: Papers (2)
GNSS-R is a technique that has demonstrated sensitivity to inland water bodies. Observations from CYGNSS can be used to map inland water bodies and extracting information from CYGNSS observations is the subject of many ongoing investigations. While the information in CYGNSS observations is useful, we are exploring methods to leverage the strengths of CYGNSS together with the strengths of other obs...Show More
Comparison of SAR and CYGNSS Surface Water Extent Metrics
Bruce D. Chapman;Ilaria Mara Russo;Carmela Galdi;Mary Morris;Maurizio di Bisceglie;Cinzia Zuffada;Brandi Downs;Marco Lavalle;Eric Loria;Andrew J. O'Brien
Many sensors are suitable for accurate delineation of open water extent, but in vegetated environments, the vegetation canopy can obscure the presence of standing water from detection. Detecting inundation extent in these vegetated environments is especially critical for identifying flooding extent where surface water may exceed flood boundaries and extend into forests surrounding nearby lakes and...Show More
Leveraging Nisar Activities to Support CYGNSS Wetlands Calibration & Validation
Brandi Downs;Bruce Chapman;Ilaria Mara Russo;Marco Lavalle;Maurizio di Bisceglie;Carmela Galdi;Mary Morris;Andrew O’Brien;Cinzia Zuffada
2021 IEEE Specialist Meeting on Reflectometry using GNSS and other Signals of Opportunity (GNSS+R)
Year: 2021 | Conference Paper |
Cited by: Papers (2)
The extended mission of NASA’s CYGNSS satellite constellation has a new focus on land applications, and the CYGNSS Science Team is actively performing land calibration/validation for soil moisture and other surface properties. At the same time, CYGNSS is also producing exciting new terrestrial surface water observations with applications for monitoring wetland extent and detecting dynamic inland i...Show More
Water Depth Retrieval in the Everglades Using Cygnss
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
Year: 2021 | Conference Paper |
Cited by: Papers (5)
Quantitative observations of dynamic changes in water extent and depth of the world's wetlands are currently limited by traditional remote sensing methods, which have difficulty observing surface water beneath dense vegetation and clouds. A novel remote sensing technique known as GNSS Reflectometry (GNSS-R) has shown great potential in the detection of terrestrial surface water beneath vegetation....Show More
State of the Art in GNSS-R Capabilities Over Inland Waters
Cinzia Zuffada;Brandi Downs;Ilaria Mara Russo;Eric Loria;Andrew O'Brien;Carmela Galdi;Maurizio di Bisceglie;Valery Zavorotny;Marco Lavalle;Mary Morris
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
Year: 2021 | Conference Paper |
Cited by: Papers (8)
GNSS Reflectometry (GNSS-R) measurements are very sensitive to the presence of inland waters such as wetlands, floods, rivers and lakes. This paper reviews the basic characteristics of a GNSS-R ‘water detection’ research product, including resolution and temporal sampling of wetlands, and discusses the main known sources of errors. Additionally, a summary of GNSS-R applicability to the study of la...Show More
Comparison of Sar and CYGNSS Surface Water Extent Metrics Over the Yucatan Lake Wetland Site
Bruce Chapman;Ilaria Mara Russo;Carmela Galdi;Mary Morris;Maurizio di Bisceglie;Cinzia Zuffada;Marco Lavalle
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
Year: 2021 | Conference Paper |
Cited by: Papers (4)
The sensitivity of remote sensing instruments for measuring inundation extent can vary widely. Many sensors are suitable for accurate delineation of open water extent, but in vegetated environments the vegetation canopy can obscure the presence of standing water from detection. Detecting inundation extent in these vegetated environments is especially critical for identifying flooding extent where ...Show More
Sensitivity Analysis of Smap-Reflectometry (SMAP-R) Signals to Vegetation Water Content
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium
Year: 2019 | Conference Paper |
Cited by: Papers (2)
Global Navigation Satellite System - Reflectometry (GNSSR) techniques have proven successful to retrieve several geophysical parameters such as, ocean wind speed, soil moisture, altimetry, wetland dynamics, snow depth estimations. In this paper, the L2C GPS signals measured from the Soil Moisture Active Passive (SMAP) radar after its malfunction is used to investigate the effect of the vegetation ...Show More
The GNSS-R Cygnss Mission: an Update
Chris Ruf;Darren McKague;Mary Morris;Derek Posselt;Mahta Moghaddam
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium
Year: 2019 | Conference Paper |
The CYGNSS constellation was successfully launched on 15 Dec 2016 and has been operating continuously in science data-taking mode since March 2017. Updates will be presented on the mission status, calibration and validation activities for its science data products, and recent scientific applications of the measurements. Those applications include the use of ocean wind measurements to estimate air-...Show More
Bistatic Scattering Modeling for Dynamic Mapping of Tropical Wetlands with Cygnss
Marco Lavalle;Mary Morris;Rashmi Shah;Cinzia Zuffada;Son V. Nghiem;Clara Chew;Valery U. Zavorotny
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
Year: 2018 | Conference Paper |
Cited by: Papers (5)
The objective of this paper is to model and study the sensitivity of bistatic microwave scattering versus changes in wetland characteristics as observed by a GNSS-R satellite system such as CYGNSS. We develop a simplified scattering model starting from the Water Cloud Model traditionally used in monostatic radar problems. Vegetation is idealized as a cloud of randomly oriented scattering elements ...Show More
Enabling Sampling Properties of the Cygnss Satellite Constellation
Chris Ruf;Charles Bussy-Virat;Darren McKague;Aaron Ridley;Mary Morris
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
Year: 2018 | Conference Paper |
The CYGNSS constellation of eight smallsats was successfully launched in low Earth orbit on December 15, 2016. Each satellite carries a four channel bistatic radar receiver which measures GPS signals scattered from the Earth surface, from which ocean surface wind speed is determined. The use of a constellation, and the way their orbits are configured relative to one another, enable critical sampli...Show More
Storm surge prediction with cygnss winds
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Year: 2017 | Conference Paper |
Cited by: Papers (3)
The NASA Earth Venture Cyclone Global Navigation Satellite System (CYGNSS) is a constellation of eight observatories in a 35° inclination, ~530 km altitude Earth orbit. Each observatory carries a 4-channel bistatic wind scatterometer receiver. Measurements of the ocean surface scattering cross section are converted to 10 meter-referenced wind speed. The mission improves the temporal sampling of wi...Show More
Earth antenna temperature variability for CYGNSS
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Year: 2016 | Conference Paper |
Cited by: Papers (1)
Calibration algorithms are being developed for the CYclone Global Navigation Satellite System (CYGNSS) mission in anticipation of a late-2016 launch date. Antenna temperature (TA) of oceanic scenes will be used to confirm the relationship between receiver noise temperature and physical temperature-which will drift over time. In this work, we develop an open ocean TA model for CYGNSS to support the...Show More
Examination of a Coupled-Pixel Model (CPM) atmospheric retrieval algorithm
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Year: 2015 | Conference Paper |
Oceanic remote sensing of rain rate and surface wind speed is possible using low frequency passive microwave sensors on both space-based and aircraft-based platforms. The particular observing geometries of these sensors allows for simplifying assumptions about the rain in the field of view - assumptions that are not possible for the Hurricane Imaging Radiometer (HIRad). HIRad's unique observing ca...Show More
The Hurricane Imaging Radiometer: Present and future
Timothy L. Miller;M. W. James;J. B. Roberts;S. K. Biswas;D. Cecil;W. L. Jones;J. Johnson;S. Farrar;S. Sahawneh;C. S. Ruf;M. Morris;E. W. Uhlhorn;P. G. Black
2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS
Year: 2013 | Conference Paper |
Cited by: Papers (2)
The Hurricane Imaging Radiometer (HIRAD) is an airborne passive microwave radiometer designed to provide high resolution, wide swath imagery of surface wind speed in tropical cyclones from a low profile planar antenna with no mechanical scanning. Wind speed and rain rate images from HIRAD's first field campaign (GRIP, 2010) are presented here followed, by a discussion on the performance of the new...Show More
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