A5004526918- Meteorological Phenomena and Simulations
- Precipitation Measurement and Analysis
- Tropical and Extratropical Cyclones Research
- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Climate variability and models
- Ionosphere and magnetosphere dynamics
- Ocean Waves and Remote Sensing
- Soil Moisture and Remote Sensing
- Radio Wave Propagation Studies
- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Advanced Computational Techniques and Applications
- Planetary Science and Exploration
- Coastal and Marine Management
- Earthquake Detection and Analysis
- Solar Thermal and Photovoltaic Systems
- Cryospheric studies and observations
- Computational Physics and Python Applications
Texas A&M University – Corpus Christi
2019-2024
Jet Propulsion Laboratory
2023-2024
Texas A&M University
2018-2020
University of Kansas
2016
Abstract. GNSS radio occultation (GNSS RO) performance in the planetary boundary layer is strongly dependent on retrieval algorithms. In this work, we explore how differences methodology across three major processing centers of RO data — NASA JPL, ROM SAF, and UCAR impact refractivity retrievals layer. Using a shared base occultations from FORMOSAT-3/COSMIC-1 mission, identify key between that are especially strong regions frequent super-refraction. We find minimum penetration height allowed...
Abstract. Commercial radio occultation (RO) satellites that utilize the Global Navigation Satellite System (GNSS) signals are emerging as key tools for observing polar regions, which not covered by second-generation Constellation Observing Meteorology, Ionosphere, and Climate (COSMIC-2) mission. This study evaluates value of commercial RO measurements, specifically Spire GeoOptics, planetary boundary layer (PBL) investigations in Arctic, a region where favorable lower-atmospheric penetration...
Abstract Extreme precipitation events (EPEs) have the potential to create catastrophic flooding, landslides, and infrastructure damage. We diagnose spatial temporal characteristics of EPEs by using Integrated Multi‐SatellitE Retrievals for Global Precipitation Measurement mission (GPM; IMERG) estimates construct spatial‐temporal ( xy‐t ) that depict both extent evolution systems. were constructed a recursive‐fractal approach classify precipitating grids across space time as belonging same...
Abstract The planetary boundary layer (PBL) height (PBLH) is a key physical parameter of the PBL affected by numerous processes within layer. Specifically, PBLH over land exhibits large spatial and temporal variation across different geographical regions. In this study, Constellation Observing System for Meteorology, Ionosphere Climate (COSMIC) radio occultation (RO) profiles high-resolution radiosonde from 2007 to 2013 were analyzed estimate diurnal cycle Southern Great Plains (SGP) in...
Abstract. The Global Navigation Satellite System (GNSS) radio occultation (RO) technique has proven to be an effective tool for Earth atmosphere profiling. Traditional spaceborne RO satellite constellations are expensive with relatively low sampling rates individual satellites. Airborne platforms can provide much higher spatial and temporal of ROs around regional weather events. This paper explores the capability a low-cost scalable Commercial-Off-The-Shelf (COTS) GNSS receiver onboard...
<h3>Abstract</h3> In recent decades, GNSS radio occultation (RO) soundings have proven to be an invaluable input global weather forecasting. The success of government programs such as COSMIC is now complemented by commercial low-cost cubesats. result access more than 10,000 per day. We examine aerial platforms for GNSS-RO, specifically high-altitude balloons and aviation. Meteorological (radiosondes) are deployed daily in over 900 locations globally. Adding GNSS-RO capability radiosondes...
Abstract Several warm-rain microphysical parameterizations are evaluated in a regional forecast model setting (using the Naval Research Laboratory’s Coupled Ocean–Atmosphere Mesoscale Prediction System) by evaluating how accurately is able to represent marine boundary layer (MBL). Cloud properties from large suite of simulations using different and concentrations cloud condensation nuclei (CCN) compared ship-based observations Variability American Monsoon Systems (VAMOS)...
In recent decades, GNSS Radio Occultation soundings have proven an invaluable input to global weather forecasting. The success of government-sponsored programs such as COSMIC is now complemented by commercial low-cost cubesat implementations. result access more than 10,000 per day and improved forecasting accuracy. This movement towards commercialization has been supported several agencies, including the National Aeronautics Space Administration (NASA), Oceanic Atmospheric (NOAA) U.S. Air...
Abstract. Commercial GNSS RO products are being touted for their coverage in polar regions where COSMIC-2 observations don’t reach. This study seeks to explore value Arctic PBL investigations sufficient lower atmospheric penetration of is vital representing the persistently shallow PBL. Both NASA purchased commercial products, Spire and GeoOptics, have improved tropospheric probability over Ocean compared MetOp observations, with having greater volume (nearly two orders magnitude) GeoOptics....
Abstract The lack of high vertical resolution atmospheric thermodynamic structure observations inside or near major weather events impedes our understanding physical processes and their predictability in numerical prediction (NWP) models. Airborne Global Navigation Satellite System (GNSS) radio occultation (airborne [ARO]) has proven to be a viable remote sensing option offer dense soundings flight tracks. global fleet commercial aircraft already equipped with GNSS receivers could leveraged...
Abstract. In this study, high-resolution radiosondes from the Marine Atmospheric Radiation Measurement (ARM) Global Energy and Water Experiment (GEWEX) Cloud System Study (GCSS) Pacific Cross-section Intercomparison (GPCI) Investigation of Clouds (MAGIC) field campaign ECMWF Reanalysis version 5 (ERA5) global reanalysis data are used to assess characteristics elevated ducting layer along a transect over northeastern Ocean Los Angeles, California, Honolulu, Hawaii. The planetary boundary...
Abstract. The Global Navigation Satellite System (GNSS) radio occultation (RO) technique has proven to be an effective tool for Earth atmosphere profiling. Traditional spaceborne RO satellite constellations are expensive with relatively low sampling density specific regions of interest. In contrast, in-atmosphere platforms can provide much higher spatial and temporal ROs around regional weather events. This study explores the capability a low-cost scalable commercial off-the-shelf (COTS)...
Abstract. In this study, high-resolution radiosondes from the MAGIC field campaign and ERA5 global reanalysis data are used to assess elevated ducting layer characteristics along transect over northeastern Pacific Ocean Los Angeles, California Honolulu, Hawaii. The height of planetary boundary (PBLH) increases as strength refractivity gradient resultant decrease east west across analysis transect. thickness remains remarkably consistent (∼110 m) in radiosonde data. On other hand, generally...
In recent decades, GNSS Radio Occultation soundings have proven an invaluable input to global weather forecasting. The success of government-sponsored programs such as COSMIC is now complemented by commercial low-cost cubesat implementations. result access more than 10,000 per day and improved forecasting accuracy. This movement towards commercialization has been supported several agencies, including the National Aeronautics Space Administration (NASA), Oceanic Atmospheric (NOAA) U.S. Air...