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EMIT-Data-Resources

Built to help scientists understand how dust affects climate, the EMIT can also pinpoint emissions of the potent greenhouse gas.
https://github.com/nasa/EMIT-Data-Resources

Category: Emissions
Sub Category: Emission Observation and Modeling

Keywords

emit lpdaac

Keywords from Contributors

ecostress gedi hyperspectral

Last synced: about 19 hours ago
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This repository provides guides, short how-tos, and tutorials to help users access and work with data from the Earth Surface Mineral Dust Source Investigation (EMIT) mission.

README.md

EMIT-Data-Resources

Welcome to the EMIT-Data-Resources repository. This repository provides guides, short how-tos, and tutorials to help users access and work with data from the Earth Surface Mineral Dust Source Investigation (EMIT) mission. In the interest of open science this repository has been made public but is still under active development. All notebooks and scripts should be functional, however, changes or additions may be made. Make sure to consult the CHANGE_LOG.md for the most recent changes to the repository. Contributions from all parties are welcome.

EMIT Background

The EMIT Project delivers space-based measurements of surface mineralogy of the Earth’s arid dust source regions. These measurements are used to initialize the compositional makeup of dust sources in Earth System Models (ESMs). The dust cycle, which describe the generation, lofting, transport, and deposition of mineral dust, plays an important role in ESMs. Dust composition is presently the largest uncertainty factor in quantifying the magnitude of aerosol direct radiative forcing. By understanding the composition of mineral dust sources, EMIT aims to constrain the sign and magnitude of dust-related radiative forcing at regional and global scales. During its one-year mission on the International Space Station (ISS), EMIT will make measurements over the sunlit Earth’s dust source regions that fall within ±52° latitude. EMIT will schedule up to five visits (three on average) of each arid target region and only acquisitions not dominated by cloud cover will be downlinked. EMIT-based maps of the relative abundance of source minerals will advance the understanding of the current and future impacts of mineral dust in the Earth system.

EMIT Data Products are distributed by the LP DAAC. Learn more about EMIT data products from EMIT Product Pages and search for and download EMIT data products using NASA EarthData Search

Prerequisites/Setup Instructions

This repository requires that users set up a compatible Python environment and download the EMIT granules used. See the setup_instuctions.md file in the ./setup/ folder.

Repository Contents

Below are the resources available for EMIT Data.

Name Type Summary
Getting EMIT Data using EarthData Search Markdown Guide A thorough walkthrough for using EarthData Search to find and download EMIT data
Streaming NASA Earthdata Cloud-Optimized GeoTIFFs using QGIS Markdown Guide A walkthrough to set up QGIS to stream cloud-optimized geotiff files from NASA Earthdata
Exploring EMIT L2A Reflectance Jupyter Notebook Explore EMIT L2A Reflectance data using interactive plots
Visualizing Methane Plume Timeseries Jupyter Notebook Find EMIT L2B CH4 Plume Data and build a timeseries of CH4 plume complexes
Generating_Methane_Spectral_Fingerprint Jupyter Notebook Extract Radiance Spectra and build an in-plume/out-of-plume ratio to compare with CH4 absorption coefficient
Finding_EMIT_L2B_Data Jupyter Notebook Use the earthaccess Python library to find EMIT L2B Mineral Identification Band Depth and Uncertainty data
Working with EMIT L2B Mineralogy Jupyter Notebook Work with the EMIT L2B Mineral Identification Band Depth and Uncertainty Data and aggregate individual spectral library constituents into the EMIT-10 minerals and estimate abundance
How to find and access EMIT data Jupyter Notebook Use the earthaccess Python library to find and download or stream EMIT data
How to Convert to ENVI Format Jupyter Notebook Convert from downloaded netCDF4 (.nc) format to .envi format
How to Orthorectify Jupyter Notebook Use the geometry lookup table (GLT) included with the EMIT netCDF4 file to project on a geospatial grid (EPSG:4326)
How to Extract Point Data Jupyter Notebook Extract spectra using lat/lon coordinates from a .csv and build a dataframe/.csv output
How to Extract Area Data Jupyter Notebook Extract an area defined by a .geojson or shapefile
How to use EMIT Quality Data Jupyter Notebook Build a mask using an EMIT L2A Mask file and apply it to an L2A Reflectance file
How to use Direct S3 Access with EMIT Jupyter Notebook Use S3 from inside AWS us-west2 to access EMIT Data
How to find EMIT Data using NASA's CMR API Jupyter Notebook Use NASA's CMR API to programmatically find EMIT Data

Helpful Links

Contact Info

Email: [email protected]
Voice: +1-866-573-3222
Organization: Land Processes Distributed Active Archive Center (LP DAAC)¹
Website: https://lpdaac.usgs.gov/
Date last modified: 08-01-2024

¹Work performed under USGS contract G15PD00467 for NASA contract NNG14HH33I.

Citation (CITATION.cff)

cff-version: 1.2.0
title: EMIT Data Resources
message: >-
  If you use this collection of resources in your research
  we would appreciate an appropriate citation.
type: software
authors:
  - given-names: Erik A
    family-names: Bolch
    affiliation: >-
      KBR, Inc., Contractor to the U.S. Geological Survey,
      Earth Resources Observation and Science Center,
      National Aeronautics and Space Administration Land
      Processes Distributed Active Archive Center
    orcid: 'https://orcid.org/0000-0003-2470-4048'
  - given-names: Aaron M
    family-names: Friesz
    affiliation: >-
      KBR, Inc., Contractor to the U.S. Geological Survey,
      Earth Resources Observation and Science Center,
      National Aeronautics and Space Administration Land
      Processes Distributed Active Archive Center
    orcid: 'https://orcid.org/0000-0003-4096-3824'
  - given-names: Mahsa
    family-names: Jami
    affiliation: >-
      KBR, Inc., Contractor to the U.S. Geological Survey,
      Earth Resources Observation and Science Center,
      National Aeronautics and Space Administration Land
      Processes Distributed Active Archive Center
    orcid: 'https://orcid.org/0000-0002-3594-3004'
  - given-names: Brianna M
    family-names: Lind
    affiliation: >-
      KBR, Inc., Contractor to the U.S. Geological Survey,
      Earth Resources Observation and Science Center,
      National Aeronautics and Space Administration Land
      Processes Distributed Active Archive Center
    orcid: 'https://orcid.org/0000-0002-5306-9963'
  - given-names: Philip G
    family-names: Brodrick
    affiliation: >-
      Jet Propulsion Laboratory, California Institute of
      Technology
    orcid: 'https://orcid.org/0000-0001-9497-7661'
  - given-names: K Dana
    family-names: Chadwick
    affiliation: >-
      Jet Propulsion Laboratory, California Institute of
      Technology
    orcid: 'https://orcid.org/0000-0002-5633-4865'
  - given-names: Cole K
    family-names: Krehbiel
    affiliation: >-
      National Aeronautics and Space Administration Land
      Processes Distributed Active Archive Center,
      U.S. Geological Survey, Earth Resources 
      Observation and Science Center
    orcid: 'https://orcid.org/0000-0003-2645-3449'
repository-code: 'https://github.com/nasa/EMIT-Data-Resources'
abstract: >-
  This repository contains guides and Jupyter Notebooks to
  help users access and work with data from the Earth
  Surface Mineral Dust Source Investigation (EMIT) mission.
license: Apache-2.0

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Last synced: 7 days ago

Total Commits: 240
Total Committers: 10
Avg Commits per committer: 24.0
Development Distribution Score (DDS): 0.158

Commits in past year: 79
Committers in past year: 4
Avg Commits per committer in past year: 19.75
Development Distribution Score (DDS) in past year: 0.089

Name Email Commits
Erik Bolch e****h@c****v 202
Bri 1****d 18
Phil Brodrick p****k@g****m 7
Aaron Friesz a****z@g****m 4
Mahsa Jami 8****0 2
nbgitpuller n****r@n****k 2
Friesz a****z@c****v 2
TKantz 1****z 1
K. Dana Chadwick d****k@j****v 1
Alex Leith a****h@g****m 1

Committer domains:

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Last synced: 2 days ago

Total issues: 22
Total pull requests: 48
Average time to close issues: 9 days
Average time to close pull requests: 3 days
Total issue authors: 12
Total pull request authors: 5
Average comments per issue: 2.0
Average comments per pull request: 0.38
Merged pull request: 45
Bot issues: 0
Bot pull requests: 0

Past year issues: 2
Past year pull requests: 9
Past year average time to close issues: 7 days
Past year average time to close pull requests: 3 days
Past year issue authors: 2
Past year pull request authors: 2
Past year average comments per issue: 3.5
Past year average comments per pull request: 0.33
Past year merged pull request: 8
Past year bot issues: 0
Past year bot pull requests: 0

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Top Issue Authors

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Score: 7.358830898342354