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Fostering Open Science in Earth Data Science Research: Insights From Earthdata Forum By ASDCIn the dynamic landscape of Earth Science research, the promotion of open science principles is paramount for advancing knowledge and collaboration. The Earthdata Forum is an actively maintained and operational user forum for all participating National Aeronautics and Space Administration (NASA) Earth Observing System Data and Information System (EOSDIS) Distributed Active Archive Centers (DAACs), and the Global Change Master Directory (GCMD). The Forum serves as a cross-DAAC platform from which user communities can obtain authoritative information relating to NASA Earth Science. This abstract explores the role of the Earthdata Forum forum.earthdata.nasa.gov as a pivotal platform in fostering open science within the Earth Science community. The platform serves as a hub for researchers to actively engage in discussions, share datasets, and collaboratively tackle challenges in the field.

Key aspects discussed include the platform's contribution to data accessibility, collaboration, and knowledge sharing. Forum.earthdata.nasa.gov provides a space where researchers transparently ask questions, discuss methodologies, share insights, and seek advice from a vibrant community. The resulting collaborative environment not only facilitates the exchange of ideas but also bolsters the collective knowledge base.
Document ID
20240003770
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (RSES)
Date Acquired
March 29, 2024
Subject Category
Documentation and Information Science
Meeting Information
Meeting: EGU Spring Meeting
Location: Vienna
Country: AT
Start Date: April 8, 2024
Sponsors: European Geosciences Union
Funding Number(s)
PROJECT: RSES.C3.15.00118
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Earthdata FORUM
DetailsPREFIRE data update (ASDC update) Pre-Ship Review
Document ID
20230004351
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Science Systems and Applications (United States) Lanham, Maryland, United States)
Date Acquired
April 4, 2023
Subject Category
Documentation and Information Science
Meeting Information
Meeting: Pre-Ship Review PREFIRE
Location: Pasadena, CA
Country: US
Start Date: April 18, 2023
End Date: April 19, 2023
Sponsors: Jet Propulsion Lab
Funding Number(s)
CONTRACT_GRANT: NNL16AA05C
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Professional Review
DetailsHealth and Air Quality Annual Review - ASDC Update
Document ID
20240005377
Acquisition Source
Langley Research Center
Document Type
Presentation
External Source(s)
https://worldview.nasa.gov/
https://opendap.earthdata.nasa.gov
https://gis.earthdata.nasa.gov
https://giovanni.earthdata.nasa.gov
https://asdc.larc.nasa.gov/soot/power-user
https://www.epa.gov/hesc/remote-sensing-information-gateway
https://www.earthdata.nasa.gov/
https://forum.earthdata.nasa.gov
https://storymaps.arcgis.com/stories/01e82aefbc8b4d7a951fe089c818bc0c
Authors
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
April 30, 2024
Subject Category
Environment Pollution
Meeting Information
Meeting: NASA Health and Air Quality Applications Program Review
Location: Jackson, WY
Country: US
Start Date: April 23, 2024
Sponsors: National Aeronautics and Space Administration
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00119
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsASDC Distribution and Services of TEMPO Data: Tracking North America's Air Quality from Space
Document ID
20240016265
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
December 18, 2024
Subject Category
Earth Resources and Remote Sensing
Meeting Information
Meeting: 105th American Meteorological Society (AMS) Annual Meeting
Location: New Orleans, LA
Country: US
Start Date: January 12, 2025
End Date: January 16, 2025
Sponsors: American Meteorological Society
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00118
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsQuality optimization of thermally sprayed coatings produced by the JP-5000 (HVOF) gun using mathematical modelingCurrently, thermal barrier coatings (TBC) of gas-turbine blades and similar applications have centered around the use of zirconia as a protective coating for high thermal applications. The advantages of zirconia include low thermal conductivity and good thermal shock resistance. Thermally sprayed tungsten carbide hardface coatings are used for a wide range of applications spanning both the aerospace and other industrial markets. Major aircraft engine manufacturers and repair facilities use hardface coatings for original engine manufacture (OEM), as well as in the overhaul of critical engine components. The principle function of these coatings is to resist severe wear environments for such wear mechanisms as abrasion, adhesion, fretting, and erosion. The (JP-5000) thermal spray gun is the most advanced in the High Velocity Oxygen Fuel (HVOF) systems. Recently, it has received considerable attention because of its relative low cost and its production of quality coatings that challenge the very successful but yet very expensive Vacuum Plasma Spraying (VPS) system. The quality of thermal spray coatings is enhanced as porosity, oxidation, residual stress, and surface roughness are reduced or minimized. Higher densification, interfacial bonding strength, hardness and wear resistance of coating are desirable features for quality improvement.
Document ID
19950012593
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tawfik, Hazem (State Univ. of New York Farmingdale, NY, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1994
Publication Information
Publication: Alabama Univ., Research Reports: 1994 NASA(ASEE Summer Faculty Fellowship Program
Subject Category
Nonmetallic Materials
Accession Number
95N19008
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
DetailsTEMPO Data Distribution by ASDC​
Document ID
20230006424
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Science Systems and Applications (United States) Lanham, Maryland, United States)
Date Acquired
April 26, 2023
Subject Category
Earth Resources and Remote Sensing
Meeting Information
Meeting: TEMPO Science Team Meeting
Location: Huntsville, AL
Country: US
Start Date: May 1, 2023
End Date: May 5, 2023
Sponsors: Marshall Space Flight Center
Funding Number(s)
CONTRACT_GRANT: NNL16AA05C
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsUnlocking Atmospheric Data: A Guide to Air Quality and Sustainable Development with the Atmospheric Science Data Center
Document ID
20250000017
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
January 2, 2025
Subject Category
Meteorology and Climatology
Meeting Information
Meeting: Save Earth from A to Z Forum
Location: Hampton, VA
Country: US
Start Date: January 19, 2025
Sponsors: National Aeronautics and Space Administration, ASEZ
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00118
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsSome aspects of robotics calibration, design and controlThe main objective is to introduce techniques in the areas of testing and calibration, design, and control of robotic systems. A statistical technique is described that analyzes a robot's performance and provides quantitative three-dimensional evaluation of its repeatability, accuracy, and linearity. Based on this analysis, a corrective action should be taken to compensate for any existing errors and enhance the robot's overall accuracy and performance. A comparison between robotics simulation software packages that were commercially available (SILMA, IGRIP) and that of Kennedy Space Center (ROBSIM) is also included. These computer codes simulate the kinematics and dynamics patterns of various robot arm geometries to help the design engineer in sizing and building the robot manipulator and control system. A brief discussion on an adaptive control algorithm is provided.
Document ID
19910010722
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tawfik, Hazem (State Univ. of New York Farmingdale, NY, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1990
Publication Information
Publication: NASA, John F. Kennedy Space Center, Research Reports: 1990 NASA(ASEE Summer Faculty Fellowship Program
Subject Category
Mechanical Engineering
Accession Number
91N20035
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
DetailsExpanding DSCOVR Data Visibility through the Atmospheric Science Data Center
Document ID
20240012806
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
October 7, 2024
Subject Category
Earth Resources and Remote Sensing
Documentation and Information Science
Meeting Information
Meeting: DSCOVR STM
Location: Greenbelt, MD
Country: US
Start Date: October 18, 2024
Sponsors: National Aeronautics and Space Administration
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00119
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsGeneric Techniques for the Calibration of Robots with Application of the 3-D Fixtures and Statistical Technique on the PUMA 500 and ARID RobotsA relatively simple, inexpensive, and generic technique that could be used in both laboratories and some operation site environments is introduced at the Robotics Applications and Development Laboratory (RADL) at Kennedy Space Center (KSC). In addition, this report gives a detailed explanation of the set up procedure, data collection, and analysis using this new technique that was developed at the State University of New York at Farmingdale. The technique was used to evaluate the repeatability, accuracy, and overshoot of the Unimate Industrial Robot, PUMA 500. The data were statistically analyzed to provide an insight into the performance of the systems and components of the robot. Also, the same technique was used to check the forward kinematics against the inverse kinematics of RADL's PUMA robot. Recommendations were made for RADL to use this technique for laboratory calibration of the currently existing robots such as the ASEA, high speed controller, Automated Radiator Inspection Device (ARID) etc. Also, recommendations were made to develop and establish other calibration techniques that will be more suitable for site calibration environment and robot certification.
Document ID
19920010079
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tawfik, Hazem (State Univ. of New York Farmingdale, NY, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1991
Publication Information
Publication: University of Central Florida, NASA(ASEE Summer Faculty Fellowship Program. 1991 Research Reports
Subject Category
Mechanical Engineering
Accession Number
92N19321
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
DetailsPREFIRE Data Update 
Document ID
20240001005
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Date Acquired
January 23, 2024
Subject Category
Documentation and Information Science
Meeting Information
Meeting: PREFIRE ORR
Location: Pasadena, CA
Country: US
Start Date: January 31, 2024
Sponsors: Jet Propulsion Laboratory
Funding Number(s)
PROJECT: RSES.C3.15.00119
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsMathematical modeling of the gas and powder flow in the (HVOF) systems to optimize their coatings qualityThermally sprayed coatings have been extensively used to enhance materials properties and provide surface protection against their working environments in a number of industrial applications. Thermal barrier coatings (TBC) are used to reduce the thermal conductivity of aerospace turbine blades and improve the turbine overall thermal efficiency. TBC allows higher gas operating temperatures and lower blade material temperatures due to the thermal insulation provided by these ceramic coatings. In the automotive industry, coatings are currently applied to a number of moving parts that are subjected to friction and wear inside the engine such as pistons, cylinder liners, valves and crankshafts to enhance their wear resistance and prolong their useful operation and lifetime.
Document ID
19960025475
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Tawfik, Hazem H. (State Univ. of New York Farmingdale, NY United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1996
Publication Information
Publication: Research Reports: 1995 NASA/ASEE Summer Faculty Fellowship Program
Subject Category
Metallic Materials
Accession Number
96N27512
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
DetailsClosing the Gap Together - Connecting Communities with NASA Data through Earthdata Partnership
Document ID
20240014257
Acquisition Source
Langley Research Center
Document Type
Poster
Authors
Elizabeth Joyner (Science Systems and Applications (United States) Lanham, Maryland, United States)
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
November 8, 2024
Subject Category
Documentation and Information Science
Meeting Information
Meeting: User Needs Technical Interchange Meeting (UN-TIM)
Location: Hampton, VA
Country: US
Start Date: November 20, 2024
End Date: November 21, 2024
Sponsors: National Aeronautics and Space Administration
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00119
Distribution Limits
Public
Copyright
Public Use Permitted.
Details2020 Wildfire Plumes Observed by Satellite and Ground Sensors at San Francisco BayThe main purpose of this research is to study the spreading of the 2020 wildfire plumes in the San Francisco Bay Area. Last year’s fire plumes have caused severe impact on regional air quality and public health over large part of the west coast. We studied fire plumes with two datasets: aerosol optical depth (AOD) retrieved from MODIS sensor onboard two NASA satellites (Terra and Aqua), and surface PM2.5 measurements from US Environmental Protection Agency (EPA). Satellite can monitor fire plumes from a top-down view, including active fire location, emission amount, spreading of the fire plume in both horizontal and vertical directions. EPA records air quality using the ground network of in-situ sensors. In general, the two points of view are consistent with each other. But in the peak of the 2020 fire season, we found an episode where the AOD and PM2.5 are out-of-phase for two days, in addition data from NASA satellite AERONET was use to corroborate AOD information for the episode, yielding similar results. Thereafter, we explored the possible mechanism for this shift with available meteorological measurements, including both ground measurements and sounding data. By tracking the evolution of the sounding data, we concluded a heated near surface inversion layer might shield the region from aloft fire plumes for two days before they touch down and severely downgraded the air quality over the whole Bay area.
Document ID
20210026780
Acquisition Source
Ames Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Universities Space Research Association Columbia, Maryland, United States)
Qian Tan (Ames Research Center Mountain View, California, United States)
Date Acquired
January 12, 2022
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: AMS (American Meteorological Society)
Location: Houston
Country: US
Start Date: January 23, 2022
Sponsors: American Meteorological Society
Funding Number(s)
CONTRACT_GRANT: NNX13AJ38A
Distribution Limits
Public
Copyright
Public Use Permitted.
Details2020 Wildfire Plumes Observed by Satellite and Ground Sensors in the San Francesco Bay AreaThe main purpose of this research is to study the spreading of the 2020 wildfire plumes in the San Francisco Bay Area. Last year’s fire plumes have caused severe impact on regional air quality and public health over large part of the west coast. We studied fire plumes with two datasets: aerosol optical depth (AOD) retrieved from MODIS sensor onboard two NASA satellites (Terra and Aqua), and surface PM2.5 measurements from US EPA. Satellite can monitor fire plumes from a top-down view, including active fire location, emission amount, spreading of the fire plume in both horizontal and vertical directions. EPA records air quality using the ground network of in-situ sensors. In general the two points of view are consistent with each other. But in the peak of the 2020 fire season, we found an episode where the AOD and PM2.5 are out-of-phase for two days. We explored the possible mechanism for this shift with available meteorological measurements, including both ground measurements and sounding data. By tracking the evolution of the sounding data, we concluded a heated near surface inversion layer might shield the region from aloft fire plumes for two days before they touch down and severely downgraded the air quality over the whole Bay area.
Document ID
20210019467
Acquisition Source
Ames Research Center
Document Type
Poster
Authors
Hazem Mahmoud (The University of Texas at San Antonio San Antonio, Texas, United States)
Qian Tan (Bay Area Environmental Research Institute Petaluma, California, United States)
Date Acquired
July 30, 2021
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Exit Presentation Poster
Location: San Francisco, CA
Country: US
Start Date: August 11, 2021
Sponsors: NASA NIFS
Funding Number(s)
CONTRACT_GRANT: NNX13AJ38A
CONTRACT_GRANT: NNX12AD05A
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Single Expert
DetailsComparison of Gas Columns Retrieved By TEMPO and Pandora – ASDC Tools and Results
Document ID
20240013364
Acquisition Source
Langley Research Center
Document Type
Poster
Authors
Alexander Radkevich (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Hazem Mahmoud (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Daniel Kaufman (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Date Acquired
October 21, 2024
Subject Category
Environment Pollution
Earth Resources and Remote Sensing
Meeting Information
Meeting: American Geophysical Union Fall Meeting
Location: Washington, DC
Country: US
Start Date: December 9, 2024
End Date: December 13, 2024
Sponsors: American Geophysical Union
Funding Number(s)
TASK: 101800.RSES.C3.15.00118.001
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
PANDORA
TEMPO
climate
air quality
atmospheric composition
ground-based monitoring
space-based monitoring
trace gas emissions
DetailsComparison of Ozone Retrievals By TEMPO, DSCOVER ,and Pandora – ASDC Tools and Results
Document ID
20240013363
Acquisition Source
Langley Research Center
Document Type
Poster
Authors
Alexander Radkevich (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Hazem Mahmoud (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Daniel Kaufman (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Date Acquired
October 21, 2024
Subject Category
Earth Resources and Remote Sensing
Environment Pollution
Meeting Information
Meeting: American Geophysical Union (AGU 2024)
Location: Washington, DC
Country: US
Start Date: December 9, 2024
End Date: December 13, 2024
Sponsors: American Geophysical Union
Funding Number(s)
TASK: 101800.RSES.C3.15.00118.001
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
ozone emissions
space-based monitoring
ground-based monitoring
atmospheric composition
air quality
climate
TEMPO
Pandora
DSCOVR EPIC
DetailsDSCOVR Data Distribution at The Atmospheric Science Data Center
Document ID
20230014707
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Hazem Mahmoud (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Alexander Radkevich (Science Systems and Applications (United States) Lanham, Maryland, United States)
Ingrid Garcia-solera (Science Systems and Applications (United States) Lanham, Maryland, United States)
Date Acquired
October 11, 2023
Subject Category
Earth Resources and Remote Sensing
Meeting Information
Meeting: DSCOVR STM
Location: Washington, DC
Country: US
Start Date: October 16, 2023
End Date: October 17, 2023
Sponsors: Langley Research Center
Funding Number(s)
CONTRACT_GRANT: 101800.RSES.C3.15.00118.001
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsJune 2023 Canadian Wildfire Effects on Hampton Roads VA using ASDC DataIn June of 2023 thousands of acres of wildfires spread across northwestern Canada. This event emitted huge amounts of smoke, and pollutants that travelled east across the North America, the Atlantic ocean and eventually all the way to Continental Europe. This smoke created a dangerous air quality event throughout the Atlantic Coast. As climate change increases the prevalence of wildfires more cities and states will be affected by the dangerous smoke and pollutants produced by these events. In this poster we documented and investigated the June 06th Air Quality Event over Hampton Roads, VA. To perform a comparative analysis, we utilized two data sources: NASA’s Atmospheric Science Data Center we used the Cloud Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), the Deep Space Climate ObserVatoRy (DSCOVR) Enhanced Polychromatic Imaging Camera (EPIC), data product, and the EPA’s ground-based Air Quality System (AQS). 
Document ID
20240010087
Acquisition Source
Langley Research Center
Document Type
Poster
Authors
Roberto Jackson Baeza (Universities Space Research Association (USRA) Columbia, MD, United States)
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Daniel Kaufman (Booz Allen Hamilton (United States) Tysons Corner, United States)
Date Acquired
August 5, 2024
Subject Category
Computer Programming and Software
Meeting Information
Meeting: AGU24
Location: Washington, DC
Country: US
Start Date: December 9, 2024
End Date: December 13, 2024
Sponsors: American Geophysical Union
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00119
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Keywords
Air Quality
DetailsRouting protocols and architecture for disaster area network: A survey
External Source
chorus
Document Type
Accepted Manuscript
Authors
Yasmin Jahir
Mohammed Atiquzzaman
Hazem Refai
Anirudh Paranjothi
Peter G. LoPresti
Date Acquired
March 10, 2025
Publication Information
Publication: Ad Hoc Networks
Publisher: Elsevier BV
Volume: 82
Issue Publication Date: January 1, 2019
ISSN: 1570-8705
DOI: 10.1016/j.adhoc.2018.08.005
Funding Number(s)
funding: 0725801
Distribution Limits
Public
DetailsComparison of Ozone, Nitrogen Dioxide, and Formaldehyde Columns Retrieved By TEMPO and Pandora – ASDC Tools and Results
Document ID
20250000063
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Alexander Radkevich (Adnet Systems, Inc.)
Hazem Mahmoud (Adnet Systems, Inc.)
Daniel E Kaufman (Booz Allen Hamilton (United States) Tysons Corner, United States)
Date Acquired
January 3, 2025
Subject Category
Earth Resources and Remote Sensing
Meeting Information
Meeting: American Meteorological Society Annual Meeting
Location: New Orleans, LA
Country: US
Start Date: January 12, 2025
End Date: January 16, 2025
Sponsors: The American Meteorological Society
Funding Number(s)
TASK: 101800.RSES.C3.15.00118.001
Distribution Limits
Public
Copyright
Public Use Permitted.
DetailsMultidimensional Data Aggregation in the Cloud with Application to Geostationary Satellite-based Air Quality MonitoringScientists use satellite data for studying Earth's systems, and the remote sensing data that these satellites collect are typically separated into files of a size small enough for efficient network transfer and storage. However, researchers usually prefer to analyze the data based on real-world dimensions like time, space, or elevation. To help with this, NASA's Atmospheric Science Data Center (ASDC) developed a new cloud-based tool that combines these smaller data chunks into larger, more useful datasets. The tool works on Network Common Data Form (netCDF4) and some HDF5 formatted files, and it is available as a service in NASA's Earthdata Cloud. In this presentation, we showcase this service using data from the Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument. By combining TEMPO's continuous observations over time, we create longer and more informative analysis-ready time series to facilitate the study of air quality patterns. Insights gained will provide a more comprehensive understanding of pollution sources, transport patterns, and their effects on the environment and human health.
Document ID
20230017765
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Daniel Kaufman (Booz Allen Hamilton (United States) Tysons Corner, Virginia, United States)
Hazem Mahmoud (Adnet Systems, Inc. (United States) Hampton, Virginia, United States)
Luis Lopez (National Snow and Ice Data Center Hampton, Virginia, United States)
Walter Baskin (Adnet Systems, Inc. (United States) Hampton, Virginia, United States)
Date Acquired
December 5, 2023
Subject Category
Earth Resources and Remote Sensing
Documentation and Information Science
Meeting Information
Meeting: 23rd Meeting of the American Geophysical Union (AGU)
Location: San Francisco, CA
Country: US
Start Date: December 11, 2023
End Date: December 15, 2023
Sponsors: American Geophysical Union
Funding Number(s)
CONTRACT_GRANT: 80LARC23DA003
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
Single Expert
DetailsActive control of asymmetric vortical flows around cones using injection and heatingThe effectiveness of certain active-control methods for asymmetric flows around circular cones is investigated by using computational solution of the unsteady, compressible full Navier-Stokes equations. Two main methods of active control which include flow injection and surface heating are used. For the flow-injection-control method, flow injection is used either in the normal direction to the surface or in the tangential direction to the surface. For the surface-heating-control method, the temperature of the cone surface is increased. The effectiveness of a hybrid method of flow control which combines normal injection with surface heating has also been studied. The Navier-Stokes equations, subjected to various surface boundary conditions, are solved by using an implicit, upwind, flux-difference splitting, finite-volume scheme for locally-conical flow solutions.
Document ID
19920072726
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kandil, Osama A. (NASA Langley Research Center Hampton, VA, United States)
Sharaf, Hazem H. (Old Dominion University Norfolk, VA, United States)
Liu, C. H. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 92-4426
Report Number: AIAA PAPER 92-4426
Meeting Information
Meeting: AIAA Atmospheric Flight Mechanics Conference
Location: Hilton Head Island, SC
Country: United States
Start Date: August 10, 1992
End Date: August 12, 1992
Accession Number
92A55350
Funding Number(s)
CONTRACT_GRANT: NAG1-994
Distribution Limits
Public
Copyright
Other
DetailsA Brief Intro to the Data from Tropospheric Emissions: Monitoring of Pollution (TEMPO)
Document ID
20240008884
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
Daniel Kaufman (Booz Allen Hamilton (United States) Tysons Corner, United States)
Hazem Mahmoud (Analytical Mechanics Associates (United States) Hampton, Virginia, United States)
Caroline Nowlan (Smithsonian Astrophysical Observatory Cambridge, Massachusetts, United States)
Gonzalo González Abad (Smithsonian Astrophysical Observatory Cambridge, Massachusetts, United States)
Date Acquired
July 12, 2024
Subject Category
Earth Resources and Remote Sensing
Meeting Information
Meeting: ESIP Meeting
Location: Asheville, NC
Country: US
Start Date: July 22, 2024
End Date: July 26, 2024
Sponsors: Earth Science Information Partners
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00118
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
NASA Peer Committee
DetailsTEMPO Data in Action: ASDC's Advanced Tools for Wildfire Monitoring and Impact Analysis
Document ID
20240013901
Acquisition Source
Langley Research Center
Document Type
Poster
Authors
Hazem Mahmoud (Adnet Systems (United States) Bethesda, Maryland, United States)
Alexander Radkevich (Adnet Systems (United States) Bethesda, Maryland, United States)
Ingrid Garcia-Solera (Adnet Systems (United States) Bethesda, Maryland, United States)
Daniel Kaufman (Booz Allen Hamilton (United States) Tysons Corner, United States)
Date Acquired
November 1, 2024
Subject Category
Earth Resources and Remote Sensing
Meeting Information
Meeting: AGU24
Location: Wahington DC
Country: US
Start Date: December 9, 2024
End Date: December 13, 2024
Sponsors: American Geophysical Union
Funding Number(s)
CONTRACT_GRANT: RSES.C3.15.00118
Distribution Limits
Public
Copyright
Public Use Permitted.
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20 Earth Resources and Remote Sensing
9 Environment Pollution
7 Documentation and Information Science
5 Meteorology and Climatology
2 Aerodynamics

keyword

2 Communications
2 Fibers
2 Optics
2 Pandora
2 TEMPO

distribution

48 Public