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NASA Earthdata
NASA Earth Science Data, Services, Webinars, Tutorials and Tools
NASA Earth Science Data, Services, Webinars, Tutorials and Tools

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New #NASA Earth #Science Data User Profile Released!

Who uses NASA Earth science data? .

Katherine Pitts, Engineering Scientist Associate; Applied Research Laboratories, University of Texas at Austin

Research interests: Comparisons of global climate models to observation-based data; analyzing, developing, and testing algorithms for processing geophysical satellite data.

Research highlights: DEVELOP program provides opportunities for early-career scientists to use Earth observations to conduct research related to a wide range of global environmental issues. Started in 1999, DEVELOP is part of NASA’s Applied Sciences Program, and addresses environmental and policy concerns through the practical application of NASA Earth observations to the areas of agriculture, climate, disasters, ecological forecasting, energy, health and air quality, oceans, water resources, and weather. More than 350 DEVELOP participants each year conduct research at NASA centers and regional locations across the country.

Katherine Pitts participated in the DEVELOP program in 2010 and 2011 while earning her master’s degree in meteorology at San Jose State University. Her research during two 10-week DEVELOP program sessions at NASA’s Ames Research Center at Moffett Field, California (about 40 miles south of San Francisco), is a good example of how early-career scientists in the program use Earth observation data to foster research designed to “bridge the gap between NASA Earth science and society” to address community concerns.

During her first summer in the DEVELOP program, Pitts and her research team used the Environmental Protection Agency’s (EPA) Better Assessment Science Integrating point & Nonpoint Sources (BASINS) model to evaluate flood risk at Ames under future climate scenarios. Because Ames is located at the southern end of San Francisco Bay, evaluations must consider not only rainfall, but also the risk of damage from erosion and flooding from tidal actions and storm surges, especially when combined with the effects of El Niño. A warming climate is expected to produce more frequent and intense rain events in this location. Flood risk at Ames also is expected to rise with a projected increase in impervious surfaces (such as roads) as the area grows in population.

To study past flooding events, the team collected measurements from the Moffett Field meteorological station, the National Centers for Environmental Information (formerly the National Climatic Data Center), the California Irrigation Management Information System, and the National Solar Radiation Database. They also collected digital elevation models from the United States Geological Survey (USGS). These data were used to run the BASINS model to simulate the mean daily streamflow across Ames when rain events similar to those that occurred during the strong 1997/1998 El Niño happen in a projected warmer climate.


To read her full profile,

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For those of you interested in or using #NASA Earth science data, here is this week's update for new or improved products.

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In this webinar, we will provide an overview of tools and resources at the NASA Global Hydrology Resource Center DAAC for accessing data related to hazardous weather, its governing dynamical and physical processes, and associated applications.

The NASA Global Hydrology Resource Center (GHRC) Distributed Active Archive Center (DAAC) archives data related to hazardous weather, its governing dynamical and physical processes, and associated applications. The GHRC DAAC addresses common observing system data challenges by providing user services that aim to make atmospheric data more accessible and easy to use across broad-user communities.

This webinar will provide an interactive overview of GHRC services and a demonstration of how these tools and resources can be used in tandem to address data use challenges and promote the discovery and use of integrated collections of satellite, airborne, and in-situ datasets We focus on the example of Hurricane Ingrid in September 2013 and demonstrate the GHRC field campaign visualization tools and data collection search tools, as well as micro articles and data recipes designed to educate users on how to use and visualize scientific data.

For more information about NASA GHRC DAAC data, information, services and tools,

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New #NASA GRACE groundwater storage and #soil moisture data available through the NASA Goddard Earth Science Data and Information Services Center (GES DISC). For details,

NASA GES DISC is one of twelve Earth Observing System Data and Information System (EOSDIS) Distributed Active Archive Centers (DAACs) that manage, archive and distribute Earth science data as part of the NASA Earth Science Data Systems Program. For information about GES DISC data, information, services and tools,

For more information about NASA's ESDS Program,

Discover and access NASA Earth #science #data

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Using NASA Earth Science Data to Help Manage Water Resources in the Navajo Nation: A Data Chat with Vickie Ly

A new computer application co-developed by Vickie Ly uses precipitation data from TRMM, GPM, and other sources to help the Navajo Nation manage water resources.

According to scientists at NASA’s Global Precipitation Measurement (GPM) mission, if you collected all the rain gauges currently in use around the world into one location they would cover an area only about the size of two basketball courts. There simply is no effective way to collect precipitation data at ground level for all points around the globe. This means that assessing water resources globally, especially in remote areas, needs to rely on data collected by Earth observing satellites, such as NASA’s GPM (launched in 2014), Tropical Rainfall Measuring Mission (TRMM, 1997-2015), and Soil Moisture Active Passive (SMAP, launched in 2015).

One remote area in which managing water resources is difficult is the Navajo Nation, which covers more than 70,000 km2 (27,000 square miles) in northern Arizona, southern Utah, and northern New Mexico. The reservation, with a 2010 Census population of 173,667, is dealing with periods of severe drought coupled with a lack of domestic water infrastructure and economic resources. According to the 2010 U.S. Census, at least 70,000 Navajo Nation residents do not have access to potable water in their homes.

Thanks to a recent NASA DEVELOP National Program effort, the Navajo Nation has a new computer application that integrates precipitation data from NASA and other sources to quickly give Navajo Nation managers reservation-wide historic and near real-time data about their water resources. Vickie Ly was part of the NASA DEVELOP team that created the Drought Severity Assessment Tool, or DSAT, for the Navajo Nation as part of NASA’s Navajo Nation Climate Project.

To read the entire Data Chat,

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2/1 A New Era for Passive Microwave Data at NASA NSIDC DAAC Webinar Now Posted!

Satellite passive microwave sensors observe microwave radiation traveling upward from the Earth. The sensors can see through most clouds and collect measurements both day and night, which is especially useful in high latitudes during the long polar night. Available since 1978, scientists have used passive microwave measurements to derive significant and meaningful climate records of many parameters, including the dramatic decline in Arctic sea ice, even though the spatial resolution has been relatively course compared to visible sensors like Landsat.

Currently available gridded passive microwave data sets serve a diverse community of hundreds of data users, but do not meet many requirements of modern climate data records, most notably in the areas of intersensor calibration and consistent processing methods. The original gridding techniques were relatively primitive and were produced on 25 km grids using the original EASE-Grid definition that is not easily accommodated in modern software packages. This effort is funded by NASA MEaSUREs to reprocess the historical gridded data sets as Earth System Data Records,using the most mature available Level 2 satellite passive microwave (SMMR, SSM/I-SSMIS, AMSR-E) records from 1978 to the present, and using state-of-the-art numerical methods to increase image spatial resolution.

We expect the new processing methods to enable scientists to better analyze trends in coastal regions and marginal ice zones that were not possible with previous releases of the data. The new data use the EASE-Grid 2.0 definition and netCDF-CF formatting, which allows users to extract compliant geotiff images, and provides for easy importing and correct reprojection interoperability in many standard packages, including IDL, ENVI, gdal, Panoply and Arc tools. As a consistently-processed, high-quality satellite passive microwave ESDR, we expect this data set to supercede at least 4 of NSIDC's standard EASE-Grid passive microwave products, and pave the way for new insights from higher-resolution derived geophysical products.

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80+ New Data Layers available in the #NASA Global Imagery Browse Services (GIBS)!

We’re pleased to announce the availability of 80+ new layers in GIBS! This includes a complete archive of NASA Moderate Resolution Imaging Spectroradiometer (MODIS) atmospheric products from the start of the NASA Terra mission (2000) and Aqua (2002) mission through the present, Advanced Microwave Scanning Radiometer 2 (AMSR2) sea ice products, and an initial batch of Web-Enabled Landsat Data (WELD) products.

If you love #NASAWorldview, or even if you have never checked it out, you are going to want to with the newly added features and data layers ( In case you missed it, recently, several new features/functionality were added to NASA Worldview- including the ability to view natural hazard events, animate data imagery over time(click on the camera icon and select your time range), and the ability to rotate polar views.

If you want to keep up to speed on GIBS and NASA Worldview news, you might be interested in the GIBS Wiki blog.

We’ve also recently released daily nighttime imagery via the joint NOAA/NASA Suomi-NPP VIIRS Day/Night Band layer! This layer is useful for showing patterns of human activity and energy behaviors such as cities and highways, the holiday periods, the tracking of shipping and fishing fleets at night, and the burning of waste natural gas (gas flares) from on and off shore oil/gas production sites.

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New Short Data Tutorial Released!

In this video you will make a Line Plot using Panoply. This tutorial assumes that you have already installed Panoply and have a netCDF file open that you wish to visualize.

About Panoply:
Panoply is a cross-platform application that runs on Macintosh, Windows, Linux and other desktop computers and allows users to plot geo-referenced and other arrayed data that are in netCDF, HDF, GRIB, and other data formats.

Link to printable step-by-step for this video:

For more information about Panoply ,

*See Panoply Orientation video for download instructions/Panoply orientation


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NASA Moderate Resolution Imaging Spectroradiometer (MODIS) Snow Cover data products are now available through the Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) tool. To read more about this release,

About AρρEEARS:

AρρEEARS was developed at the NASA Land Processes Distributed Active Archive Center (LP DAAC) and enables users to input geographic coordinates, such as field study sites or flux towers, and receive analysis-ready data in return from more than 100 Earth science remote sensing data products.

AρρEEARS also provides interactive visualizations - including time series and scatter plots - and allows users to preview and interact with their query results before downloading them. In addition to the plots, users are able to view quality information and pixel values in a sortable table.

Step-by-step instructions for how to use AρρEEARS and a full listing of products available can be found on the AppEEARS Help page.

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New Short Data Tutorial Released!

Getting Started with NASA MODIS Version 6 Surface Reflectance Data

Part 3: Interpreting Quality Information
This video focuses on the National Aeronautics and Space Administration’s (NASA) Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Version 6 Surface Reflectance data distributed by NASA’s Land Processes Distributed Active Archive Center (LP DAAC). Information about MODIS Surface Reflectance quality information, including how to decode it and where to find additional information, will be provided.

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