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  • Other Sources  (12,670)
  • Meteorology and Climatology  (6,758)
  • Earth Resources and Remote Sensing  (5,912)
  • 1
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    Estimation of the Tropical Cyclone Diurnal Cycle Using Simulated Observations from the NASA TROPICS Earth Venture Mission (2020)
    In:  CASI
    Details
    Publication Date: 2020-01-24
    Description: No abstract available
    Keywords: Meteorology and Climatology
    Type: MSFC-E-DAA-TN76613 , American Meteorological Society (AMS) Annual Meeting; Jan 12, 2020 - Jan 16, 2020; Boston, MA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    NASA GIBS and Worldview: Leveraging FOSS for NASA Earth Science Data Visualizations (2019)
    In:  Other Sources
    Details
    Publication Date: 2020-01-24
    Description: The NASA Global Imagery Browse Services (GIBS) and Worldview interactive mapping site leverage scientific and community best practices, open source software, and public standards to provide a scalable, compliant, and authoritative source for NASA Earth Observing System (EOS) Earth science data visualizations. GIBS and Worldview allow end users to easily and quickly interact with more than 800 full resolution pre-generated raster- and vector-based visualizations. This interactive discovery approach relies on visual observation and identification of phenomena that are not as simply identified otherwise. This eLightning presentation will exhibit the broad set of capabilities and visualization layers made possible through the GIBS and Worldview open source software. Specific dependencies on, and contributions to, open source software will be highlighted. Additionally, opportunities for future improvements for better interoperability and reuse through open source software will be discussed.
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN76098 , American Geophysical Union (AGU) Fall Meeting 2019; Dec 09, 2019 - Dec 13, 2019; San Francisco, CA; United States
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  • 3
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    AJAX CABOTS Data (2020)
    In:  CASI
    Details
    Publication Date: 2020-01-24
    Description: The Alpha Jet Atmospheric eXperiment (AJAX) airborne science project based out of NASA Ames Research Center performed eight science flights in coordination with the California Baseline Ozone Transport Study (CABOTS) campaign. Many of these flights included a series of vertical profiles (~ 0-5 km) distributed roughly along either a North/South or East/West transect. Some flights also connected the fixed-location measurements at Visalia (TOPAZ ozone lidar) and Bodega Bay (ozonesondes). AJAX measured ozone, carbon dioxide, methane, water vapor, and 3-D winds on each flight, and those in situ measurements are the basis of the data sets collected here. Trace gas data sets including time and aircraft position have been delivered as comma-separated-value text files. Meteorological data (temperature, pressure and 3-dimensional winds) are provided at 1 Hz in ICARTT-compliant text files.
    Keywords: Earth Resources and Remote Sensing
    Type: ARC-E-DAA-TN77025
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    NASA TECHNICAL REPORTS
  • 4
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    Rapid Expansion of Northern Peatlands and Doubled Estimate of Carbon Storage (2019)
    In:  Other Sources
    Details
    Publication Date: 2020-01-24
    Description: Northern peatlands are an integral part of the global carbon cyclea strong sink of atmospheric carbon dioxide and source of methane. Increasing anthropogenic carbon dioxide and methane in the atmosphere are thought to strongly impact these environments, and yet, peatlands are not routinely included in Earth system models. Here we present a quantification of the sink and stock of northern peat carbon from the last glacial period through the pre-industrial period. Additional data and new algorithms for reconstructing the history of peat carbon accumulation and the timing of peatland initiation increased the estimate of total northern peat carbon stocks from 545 Gt to 1,055 Gt of carbon. Further, the post-glacial increases in peatland initiation rate and carbon accumulation rate are more abrupt than previously reported. Peatlands have been a strong carbon sink throughout the Holocene, but the atmospheric partial pressure of carbon dioxide has been relatively stable over this period. While processes such as permafrost thaw and coral reef development probably contributed some additional carbon to the atmosphere, we suggest that deep ocean upwelling was the most important mechanism for balancing the peatland sink and maintaining the observed stability.
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN74633 , Nature Geoscience (ISSN 1752-0894) (e-ISSN 1752-0908); 12; 11; 917–921
    Format: text
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  • 5
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    River Flood Prediction Using a Long Short-Term Memory Recurrent Neural Network (2020)
    In:  CASI
    Details
    Publication Date: 2020-01-24
    Description: No abstract available
    Keywords: Meteorology and Climatology
    Type: MSFC-E-DAA-TN76760 , AMS Annual Meeting; Jan 12, 2020 - Jan 16, 2020; Boston, MA; United States
    Format: application/pdf
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  • 6
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    Citizen Science Twitter Data Management for Earth Science Applications (2019)
    In:  Other Sources
    Details
    Publication Date: 2020-01-24
    Description: Social media data can provide useful real-time and historical information relating to the natural world, but managing this data poses challenges. Scientists at GES DISC are exploring the potential of Twitter data to augment precipitation data from the Global Precipitation Measurement (GPM) mission. However, the format of Twitter data is unconventional in the context of NASA data centers, resulting in frustration for scientists who need to work with the data. This study investigated procedures and standards needed to properly manage Twitter data to make them compatible with these data centers. After comparing databases, the study found that the MongoDB database was best suited for the storage of raw Twitter data due to its flexibility, ability to be accessed by multiple users, and querying functionality. The study used the Python package Zarr to transform processed Twitter data into a gridded format similar to that of satellite data. Each Tweet was mapped onto a time-space grid; each grid location contained information about Tweet attributes and precipitation. The study developed a pipeline for downloading, storing, and gridding Twitter data and transformed Twitter data into an understandable format for users of NASA satellite data.
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN76535 , AGU 2019 Fall Meeting; Dec 10, 2019
    Format: text
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  • 7
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    Investigating Meteorological Conditions Associated with Valley Fever Outbreaks in Southwestern United States (2019)
    In:  Other Sources
    Details
    Publication Date: 2020-01-24
    Description: According to CDC, a sharp increase in reported Valley fever cases (Coccidioidomycosis) has been found between 2009 and 2012. Environmental conditions play an important role for Valley fever outbreaks. For example, dust storms can significantly increase the amount of the fungus Coccidioides in the air and associated strong winds can transport the fungus to other areas. In last years AGU session, we reported a preliminary study to investigate hydrometeorological conditions and their connection with dust storm activities in southwestern United States. We found wind is a major contributing factor for the seasonal variation of dust storm activities. Interannual variation of the regional hydrometeorological conditions are closely linked to the large-scale environment such as the Pacific Decadal Oscillation (PDO). Strong winds are linked with a number of weather events such cold front passages, thunderstorms that produce downbursts and strong winds, the Santa Ana winds, etc. In this presentation, we will report the results of our latest investigation on meteorological conditions associated with Valley fever outbreaks in southwestern United States, using NLDAS (North American Land Data Assimilation System), GPM (Global Precipitation Measurement), and MERRA-2 (Modern Era Retrospective-analysis for Research and Applications, Version 2) hourly datasets, from the NASA Goddard Earth Sciences (GES) Data and Information Services Center (DISC).
    Keywords: Meteorology and Climatology
    Type: GH44A-08 , GSFC-E-DAA-TN76501 , American Geophysical Union (AGU) Fall Meeting 2019; Dec 09, 2019 - Dec 13, 2019; San Francisco, CA; United States
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  • 8
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    New Observing Strategy (NOS) for Future NASA Earth Science Missions (2019)
    In:  Other Sources
    Details
    Publication Date: 2020-01-24
    Description: No abstract available
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN76317 , American Geoscience Union (AGU) Fall Meeting; Dec 09, 2019 - Dec 13, 2020; San Francisco, CA; United States
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  • 9
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    What Caused the Record Floods of March 2019 Across the Middle East? (2019)
    In:  CASI
    Details
    Publication Date: 2020-01-24
    Description: Atmospheric rivers (ARs) are responsible for some of the hydroclimatic extremes around the world. Their mechanisms and contribution to flooding in the Middle East are relatively poorly understood. This study shows that the record floods during March 2019 across the Middle East were caused by a powerful AR, originated from the North Atlantic Ocean. Iran, in particular, was substantially affected by the floods. The nearly 9000 km long AR propagated across North Africa and the Middle-East, and was fed by additional moisture from several other sources on its pathway. Simultaneous presence of a mid-latitude system and a subtropical jet facilitated the moisture supply. The AR, as passing over the Zagros Mountains, produced record rainfall induced by the orographic forcing.
    Keywords: Meteorology and Climatology
    Type: GSFC-E-DAA-TN76114
    Format: application/pdf
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  • 10
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    Engaging and Inspiring Young Women in STEAM: NASA SERVIR's Contributions to the Women in Science (WiSci) STEAM Camps (2019)
    In:  CASI
    Details
    Publication Date: 2020-01-23
    Description: No abstract available
    Keywords: Earth Resources and Remote Sensing
    Type: MSFC-E-DAA-TN76011 , AGU 2019 Fall Meeting; Dec 09, 2019 - Dec 13, 2019; San Francisco, CA; United States
    Format: application/pdf
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