A5045728647- Lightning and Electromagnetic Phenomena
- Fire effects on ecosystems
- Meteorological Phenomena and Simulations
- Atmospheric aerosols and clouds
- Precipitation Measurement and Analysis
- Ionosphere and magnetosphere dynamics
- Soil Moisture and Remote Sensing
- Plant responses to water stress
- Fire Detection and Safety Systems
- Solar and Space Plasma Dynamics
- Earthquake Detection and Analysis
- Cryospheric studies and observations
- Air Traffic Management and Optimization
- Landslides and related hazards
- Atmospheric Ozone and Climate
- GNSS positioning and interference
- Reliability and Maintenance Optimization
- Remote Sensing in Agriculture
- Geomagnetism and Paleomagnetism Studies
- Ocean Waves and Remote Sensing
- Tree Root and Stability Studies
- Fire dynamics and safety research
- Advanced Optical Sensing Technologies
- Advanced Photonic Communication Systems
- Environmental and biological studies
NOAA Center for Satellite Applications and Research
2014-2024
University of Maryland, College Park
2011-2024
National Oceanic and Atmospheric Administration
2012-2024
Earth System Science Interdisciplinary Center
2017-2024
NOAA National Environmental Satellite Data and Information Service
2015-2024
Deleted Institution
2024
Healthcare Education Associates
2024
Los Alamos National Laboratory
2020
Cooperative Institute for Climate and Satellites
2017
Agency for Science, Technology and Research
2017
Abstract The Geostationary Lightning Mapper (GLM) continuously observes lightning throughout a near‐hemispheric field of view, capturing spatiotemporal variability on unprecedented scales. This study documents GLM distributions during the initial 9 months in operational Operational Environmental Satellite‐East position (December 2017 to August 2018). Spatial maps, summary statistics, and time series illustrate seasonal, regional, diurnal patterns. activity shifts from south north period with...
Abstract This study evaluates 4 years (2009–2012) of World Wide Lightning Location Network (WWLLN) data relative to the Tropical Rainfall Measuring Mission Imaging Sensor (LIS). In Western Hemisphere, between 38°N and 38°S, WWLLN detection efficiency (DE) (of LIS flashes) steadily improves from 6% during 2009 9.2% 2012. The is approximately three times more likely detect a flash over ocean (17.3%) than land (6.4%), DE values greater 20% only occur oceans. An average 1.5 strokes occurs each...
Abstract Geostationary Extended Observations, or GeoXO, is NOAA’s future geostationary satellite constellation, set to launch in the early 2030s and operate into 2050s. Given changes Earth system, improvements technology, expanding needs of data users, GeoXO will extend current observation suite by adding three new instruments one spacecraft. Improved versions imager lightning mapper again be placed on East West satellites, where they monitor severe storms, tropical cyclones, fires, other...
This work addresses the long-term relative occurrence of cloud-to-ground (CG) and intracloud (IC; no attachment to ground) flashes for contiguous United States (CONUS). It expands upon an earlier analysis by Boccippio et al. who employed 4-yr datasets provided U.S. National Lightning Detection Network (NLDN) Optical Transient Detector (OTD). Today, duration NLDN historical dataset has more than tripled, OTD data can be supplemented with from Imaging Sensor (LIS). is timely, given launch...
Abstract The Geostationary Lightning Mapper (GLM) on the Operational Environmental Satellite‐R series of weather satellites provides point geolocations lightning flashes that are further comprised a hierarchy geolocated groups and events. This study describes an open‐source method for reconstruction imagery from those detections retains quantitative physical measurements made by GLM, restores spatial footprint events, connects to flashes. Meteorological signals demonstrated be more apparent...
Abstract This study uses Global Precipitation Measurement (GPM) Microwave Imager (GMI) and Ka-precipitation radar observations to quantify the snowfall detection performance for different channel (frequency) combinations. Results showed that low-frequency-channel set contains limited snow information with a 0.34 probability of (POD). Much better is evident using high-frequency channels (i.e., POD = 0.74). In addition, if only one allowed be added set, adding 183 ± 3 GHz presents largest...
Abstract Bolides are detected by the Geostationary Lightning Mapper onboard GOES ‐16 weather satellite, which takes images of Earth at a rate 500 Hz in 1.1 nm wide pass band centered on 777.4 wavelength. Ten case studies discussed. These initial results were obtained using Level 0 data received during nonoperational in‐orbit postlaunch test period. GLM positions and timings sufficiently accurate to assist trajectory orbit reconstruction. samples light curve nearly completely, unaffected...
Abstract The National Lightning Detection Network (NLDN) underwent a major upgrade during 2002–03 that increased its sensitivity and improved performance. It is important to examine cloud-to-ground (CG) lightning distributions before after this because CG characteristics depend on both measurement capabilities meteorological variability. This study compares preupgrade (1996–99, 2001) postupgrade (2004–09) over the contiguous United States influence of recent provide baseline averages....
This study evaluates three years (2011-13) of data from the Earth Networks Total Lightning Network (ENTLN) relative to Tropical Rainfall Measurement Mission (TRMM) Imaging Sensor (LIS).Within Western Hemisphere (38°N 38°S), flash detection efficiency (DE) increases 21.6% during 2011 31.4% 2013.Performance improves in each geographical subdomain, with best regional performance (71.9%) over southern contiguous United States (south 38°N).The daily DE generally exceeds 15% (50%) (North America),...
Abstract Storm severity in the mid-Atlantic region of United States is examined using lightning, radar, and model-derived information. Automated Warning Decision Support System (WDSS) procedures are developed to create grids lightning radar parameters, cluster individual storm features, data mine attributes 1252 severe nonsevere storms. The study first examines influence serial correlation uses autocorrelation functions document persistence parameters. Decorrelation times found vary by...
Abstract This study evaluates the performance of operational and reprocessed Global Lightning Dataset 360 (GLD360) data relative to Tropical Rainfall Measuring Mission (TRMM) Imaging Sensor (LIS) during 2012–14. The analysis compares ground- space-based lightning observations better characterize pre- postupgrade GLD360. reprocessed, increase fraction LIS flashes detected by GLD360 [i.e., detection efficiency (DE)]. DE improves each year in every region, year-over-year improvement appears...
This study documents the composition, morphology, and motion of extreme optical lightning flashes observed by Lightning Imaging Sensor (LIS). The furthest separation LIS events (groups) in any flash is 135 km (89 km), with largest footprint had an illuminated area 10,604 km2, most dendritic has 234 visible branches. longest-duration convective lasted 28 s overgrouped not physical. convective-to-stratiform propagating 7.4 s, while entirely stratiform 4.3 s. longest series nearly consecutive...
Abstract The Geostationary Operational Environmental Satellite-14 (GOES-14) imager was operated by the National Oceanic and Atmospheric Administration (NOAA) in an experimental rapid scan 1-min mode during parts of summers 2012 2013. This mode, known as super operations for GOES-R (SRSOR), emulates high-temporal-resolution sampling mesoscale region scanning Advanced Baseline Imager (ABI) on next-generation series. paper both introduces these unique datasets highlights future satellite...
Abstract Two Geostationary Lightning Mappers (GLMs) now observe spatial and temporal lightning distributions over a vast region. The GOES-16 GLM covers most land areas in the Western Hemisphere, detects ~4 times as much GOES-17 GLM. Although continents dominate year-round, each season exhibits widespread parts of Atlantic Ocean within three broad regions Pacific. These oceanic demonstrate key role convective organization plays producing larger, longer-lasting, more energetic flashes observed...
Abstract The composition and time evolution of lightning are examined using the Lighting Imaging Sensor (LIS). Frame‐by‐frame optical measurements clustered into features whose radiant energy, horizontal footprint, timing may be analyzed statistically. A LIS series feature is used to describe distinct periods near continuous illumination that persists over multiple frames. Series integrated clustering hierarchy between group flash level. An average illuminates 40% footprint while accounting...
Abstract Optical lightning measurements from the Lightning Imaging Sensor (LIS) are used to map lateral development of flashes and produce statistics that describe their motion through electrified cloud. This is accomplished by monitoring frame‐by‐frame (group‐level) evolution optical signals produced during each flash. While flash properties recorded LIS gravitate towards most exceptional flash, group‐level data resulting physical process emits enough light out top cloud be detected orbit....
Abstract Seasonal, regional, and storm-scale variations of cloud-to-ground (CG) lightning characteristics in Florida are presented. Strong positive CG (+CG) negative (−CG) flashes (i.e., having large peak current) emphasized since they often associated with strong storms, structural damage, wildfire ignitions. Although −CG most common during the warm season (May–September) over peninsula, greatest proportion +CG occurs cool (October–April) panhandle. The exhibits smallest percentage but...
Abstract Optical lightning observations from space reveal a wide range of flash structure. Lightning imagers such as the Geostationary Mapper and Imaging Sensor measure appearance by recording transient changes in cloud top illumination. The spatial temporal optical energy distributions reported these instruments depend on physical structure distribution hydrometeors within thundercloud that scatter absorb emissions. This study explores how according to scale organization parent...
Abstract Optical lightning observations from low-Earth orbit play an important role in our understanding of long-term global trends. Lightning Imaging Sensors (LIS) on the Tropical Rainfall Measuring Mission (TRMM) satellite (1997–2015) and International Space Station (2017–present) capture optical emissions produced by lightning. This study uses well-documented TRMM LIS performance to determine if ISS performs well enough bridge gap between new generation Geostationary Mappers (GLMs). The...
Abstract This study investigates the correlation between upwelling microwave brightness temperature measured by satellite radiometer and surface precipitation rate from ground radar observations at different time lags. Results show that temperatures correlate more strongly with lagged than simultaneous rate. The lag for snowfall ranges 30 to 60 min. effect has an important influence when evaluating retrieval results relative observations. For example, falsely identified pixels can decrease...
Abstract The organization and structure of thunderstorms determines the extent severity their hazards to general public consequences for Earth system. Distinguishing vigorous convective regions that produce heavy rain hail from adjacent stratiform clouds or overhanging anvil light no rainfall is valuable in operations physical research. Cloud-type algorithms partition convection have been developed space-based radar, passive microwave, now Geostationary Operational Environmental Satellites...