SHIFT: AVIRIS-NG L2A Unrectified Reflectance

Feb 18, 2024
The ORNL DAAC recently released a new SBG High Frequency Time Series (SHIFT) dataset from Brodrick, P. et al. (2023):SHIFT: AVIRIS-NG L2A Unrectified ReflectanceThis dataset contains Level 2A (L2A) unrectified surface reflectance images from NASA's Airborne Visible / Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) instrument. This imagery was collected as part of the Surface Biology and Geology High-Frequency Time Series (SHIFT) campaign which occurred during February to May, 2022, with a follow up activity for one week in September. The SHIFT campaign leveraged NASA's AVIRIS-NG facility instrument to collect approximately weekly VSWIR imagery across the study area enabling traceability analyses related to the science value of VSWIR revisit without relying on multispectral proxies. This campaign will generate precise, high-frequency data on plant communities collected over nearly 1,656 square kilometers across Santa Barbara County, California, US, and nearby coastal Pacific waters. AVIRIS-NG is a pushbroom spectral mapping system with high signal-to-noise ratio (SNR), designed and toleranced for high performance spectroscopy. AVIRIS-NG measures reflected radiance at 5-nm intervals in the Visible to Shortwave Infrared (VSWIR) spectral range from 380-2510 nm. The AVIRIS-NG sensor has a 1 milliradian instantaneous field of view, providing altitude dependent ground sampling distances from 20 m to sub-meter range. The AVIRIS-NG L2A data are provided in ENVI binary format, which includes a flat binary file accompanied by a header (.hdr) file holding metadata in text format.The Surface Biology and Geology (SBG) High Frequency Time Series (SHIFT) was an airborne and field campaign during February to May, 2022, with a follow up activity for one week in September, in support of NASA's SBG mission. Its study area included a 640-square-mile (1,656-square-kilometer) area in Santa Barbara County and the coastal Pacific waters. The primary goal of the SHIFT campaign was to collect a repeated dense time series of airborne Visible to ShortWave Infrared (VSWIR) airborne imaging spectroscopy data with coincident field measurements in both inland terrestrial and coastal aquatic areas, supported in part by a broad team of research collaborators at academic institutions. The SHIFT campaign leveraged NASA's Airborne Visible-Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) facility instrument to collect approximately weekly VSWIR imagery across the study area. The SHIFT campaign 1) enables the NASA SBG team to conduct traceability analyses related to the science value of VSWIR revisit without relying on multispectral proxies, 2) enables testing algorithms for consistent performance over seasonal time scales and end-to-end workflows including community distribution, and 3) provides early adoption test cases to SHIFT application users and incubate relationships with basic and applied science partners at the University of California Santa Barbara Sedgwick Reserve and The Nature Conservancy's Jack and Laura Dangermond Preserve.Additional data from SHIFT and other relevant links can be found on the ORNL DAAC's SHIFT Project Page.Citation: Brodrick, P., R. Pavlick, M. Bernas, J.W. Chapman, R. Eckert, M. Helmlinger, M. Hess-Flores, L.M. Rios, F.D. Schneider, M.M. Smyth, M. Eastwood, R.O. Green, D.R. Thompson, K.D. Chadwick, and D.S. Schimel. 2023. SHIFT: AVIRIS-NG L2A Unrectified Reflectance. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2183
ORNL DAAC Staff

Webinar: Explore the Openscapes Earthdata Cloud Cookbook

Feb 18, 2024
NASA Openscapes is a community of NASA data center staff and open science contributors who are helping researchers learn how to use the capabilities of Earthdata Cloud.  This webinar is about the Openscapes Earthdata Cloud Cookbook, which is compilation of open-source tutorials, workflows, libraries, and cheatsheets for data, tools, and services available through Earthdata Cloud.Feb 28, 2024 2:00 ET (-0500 UTC) - Feb 28, 2024 3:30 ET (-0500 UTC)Register here for more information.Presenters: Bri Lind, LP DAAC; Luis Alberto Lopez Espinosa, NSIDC DAAC; Cassie Nickles, PO.DAAC; and Alexis Hunzinger, GES DISCHosted By: ESDIS Communications TeamAs part of this effort, NASA Openscapes Mentors are developing the open-source Earthdata Cloud Cookbook—a compilation of tutorials, workflows, and cheatsheets that has been refined through more than 20 Cloud workshops with researchers using NASA Earth science data. This webinar will show attendees how to use the many resources in the Earthdata Cloud Cookbook.As part of the broader open science community, NASA Openscapes supports Earth science data users by fostering an open science mindset focused on kindness and inclusion, as well as developing software to reduce time to science and meet researchers where they are.
ORNL DAAC Staff

ABoVE: Soil Matric Potential, Dielectric, & Physical Properties 2018

Feb 18, 2024
The ORNL DAAC recently released a new Arctic-Boreal Vulnerability Experiment (ABoVE) dataset by Bakian-Dogaheh, K., et al. (2022): Soil Matric Potential, Dielectric, and Physical Properties, Arctic Alaska, 2018 This dataset provides lab-measured soil properties, including soil water matric potential, soil dielectric properties, soil electrical conductivity, corresponding soil moisture. The dataset also includes the basic soil physical properties such as soil organic matter, bulk density, porosity, fiber content, root biomass, and mineral texture. Soil samples were collected from August 21 to August 27, 2018, from the surface to permafrost table in soil pits at nine sites along the Dalton Highway in northern and central regions of Alaska. Permittivity and soil electrical conductivity measurements were conducted using METER TEROS 12 probes. Soil moisture measurements were made with a TEROS 21 probe. The measurements were conducted in the lab over the span of three years. The purpose of soil collection and lab measurements was to develop an integrated framework that relates the hydrological properties to dielectric properties of permafrost active layer soil in support of the NASA Arctic and Boreal Vulnerability Experiment (ABoVE) Airborne Campaign. The ABoVE is a NASA Terrestrial Ecology Program field campaign being conducted in Alaska and western Canada, for 8 to 10 years, starting in 2015. Research for ABoVE links field-based, process-level studies with geospatial data products derived from airborne and satellite sensors, providing a foundation for improving the analysis, and modeling capabilities needed to understand and predict ecosystem responses to, and societal implications of, climate change in the Arctic and Boreal regions. Additional data from ABoVE and other relevant links can be found on the ORNL DAAC's ABoVE Project Page. Citation: Bakian-Dogaheh, K., R.H. Chen, Y. Yi, T.D. Sullivan, R.J. Michaelides, A.D. Parsekian, K. Schaefer, A. Tabatabaeenejad, J. Kimball, and M. Moghaddam. 2023. Soil Matric Potential, Dielectric, and Physical Properties, Arctic Alaska, 2018. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2149
ORNL DAAC Staff

SAGE III-ISS Level 2 Aerosol Auxiliary Product Release Announcement

Feb 16, 2024

Stratospheric aerosol plays an important role in chemistry and climate. Space-based observations of their optical properties have been key elements of the study of the effects of major volcanic and extreme fire events. To aid users of SAGE III/ISS Level 2 aerosol data, the mission is releasing a Level 2 aerosol auxiliary product that identifies cloud-free observations using the method of Kovilakam et al. 2023 (https://doi.org/10.5194/amt-16-2709-2023). The algorithm is similar to that developed for the Global Space-based Stratospheric Aerosol Climatology (GloSSAC), in which SAGE III/ISS data plays a crucial role alongside other space-based measurements (asdc.larc.nasa.gov/project/GloSSAC ). The new Level 2 aerosol auxiliary product is released at the same cadence as the L2 solar products. For general ease of use, the results are grouped into monthly netcdf file.

Information about these new data products can be found at the following ASDC link:

https://asdc.larc.nasa.gov/project/SAGE III-ISS

These data products are available from the ASDC via the following options:

Earthdata Search

Direct Data Download

OPeNDAP

CALIPSO Lidar Level 2 Blowing Snow Products Release Announcement

Feb 5, 2024
The CALIPSO mission team announces the release of two new CALIOP Level 2 monthly data products:
  • CAL_LID_L2_BlowingSnow_Greenland-Standard-V1-00
  • CAL_LID_L2_BlowingSnow_Antarctica-Standard-V2-00

  • The Blowing Snow monthly data products, developed by Dr. Stephen Palm, isolates blowing snow events determined from the CALIOP lidar atmospheric attenuated backscatter measurements and obtains the spatial and temporal frequency, layer height, and optical depth of these events over Antarctica (updated version 2.00) and Greenland (new version 1.00) data for June 2006 through June 2023. These new products rely on the recently released V4.51 Lidar Level 1 and Lidar Level 2 data products as input.

    Information about these new data products can be found at the following ASDC link:
    https://asdc.larc.nasa.gov/project/CALIPSO

    An in-depth data description document can be found in the following CALIPSO link:
    https://www-calipso.larc.nasa.gov/resources/calipso_users_guide/data_desc/cal_lid_l2_blowingsnow_antarctica_v2-00_desc.php

    These data products are available from the ASDC via the following options:
  • Earthdata Search
  • Direct Data Download
  • OPeNDAP
  • Sample of Preliminary, Unvalidated TEMPO Data Products Now Available on Earthdata Search

    Feb 5, 2024

    To help users become familiar with Tropospheric Emissions: Monitoring of Pollution (TEMPO) data products, the Atmospheric Science Data Center (ASDC) is releasing two weeks of preliminary, unvalidated TEMPO observations obtained during nominal operations from December 17-30, 2023, and eight days of commissioning observations, including first light, obtained during August 2023.

    Data products from this release are processed using the TEMPO Science Data Processing Center (SDPC) software that is operational as of January 2024. The release includes all baseline products except for the ozone profile product, which has not yet been placed into production.

    These products are unvalidated and have not yet reached the Beta Product Maturity level defined in the TEMPO validation plan.

    The products are not optimized for operational use, and anomalies may exist.

    This release is intended only for users to gain familiarity with file format and content.

    These unvalidated TEMPO products should not be used in publications or presentations, and users should refrain from making conclusive public statements regarding the science and applications of the TEMPO data products until the products are designated to be at the provisional validation status according to the validation plan.

    A readme file describing the data products in this preliminary release and associated known issues can be found here.

    For inquiries about this preliminary TEMPO data release, please contact larc-dl-asdc-tempo@mail.nasa.gov or post/view questions on the Earthdata Forum.

    The TEMPO data may be accessed through Earthdata Search.

    ACCLIP Release Announcement

    Jan 25, 2024
    The Atmospheric Science Data Center (ASDC) has released the data for the Asian Summer Monsoon Chemical and CLimate Impact Project (ACCLIP). ACCLIP was an international, multi-organizational suborbital campaign that aimed to study aerosols and chemical transport that is associated with the Asian Summer Monsoon (ASM) in the Western Pacific region from 15 July 2022 to 31 August 2022. The ASM is the largest meteorological pattern in the Northern Hemisphere during the summer and is associated with persistent convection and large anticyclonic flow patterns in the upper troposphere and lower stratosphere. ACCLIP was conducted by NASA and the National Center for Atmospheric Research (NCAR) with the primary goal of investigating the impacts of Asian gas and aerosol emissions on global chemistry and climate. The NASA WB-57 and NCAR G-V were outfitted with state-of-the-art sensors to accomplish the mission objectives.

    Data Access ASDC ACCLIP Landing Page
    NCAR ACCLIP Home Page
    Earthdata Search
    Direct Data Download

    ACTIVATE Data Webinar Materials

    Jan 18, 2024
    Here you will find resources and material from ACTIVATE's Data Webinars and Workshops

    November 2023

    The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) team hosted a free open data workshop in the form of its annual science team meeting on November 13-15, 2023, at the University of Arizona (Tucson, Arizona). This meeting featured an overview talk about ACTIVATE and its data, science talks by participants associated with the science team, and interactive sessions for in-person participants.

    Materials
    Webinar Agenda Presenter Title View Slides (PDF) Download Video Presentation (mp4) Sorooshian Welcome/Introductions/Logistics/Goals Click Here Click Here Sorooshian Team Progress to Date & Data Details Click Here Click Here ASDC SOOT for ACTIVATE: reaching aerosol research communities Click Here Click Here Liu Tropospheric Aerosols Over the Western North Atlantic Ocean During May-June ACTIVATE 2021 and 2022: Transport, Distribution, and Sources Click Here Click Here Silva CO/CO2 and aerosol composition data Click Here Click Here Gao/Redemann Machine Learning Shines a Laser Light on Murky Aerosol Picture Click Here Click Here Wood Observations and understanding of the role of giant CCN in influencing warm rain production from shallow liquid clouds in ACTIVATE Click Here Click Here Zeng Group (Xu, Siu, Cutler) Updates on multiple projects Click Here Click Here Chellappan Cloud macro- and microphysical characterized from ASTER underflights during ACTIVATE Click Here Click Here Crosbie ACTIVATE Summer Process Study Cloud Analysis Click Here Click Here Soloff Bridging Gas and Aerosol Properties between Northeast US and Bermuda Click Here Click Here Ajayi A Unique Vertical Characterization of Aerosol Over Bermuda Click Here Click Here Edwards PFAS in Cloud Water Over the Northwestern Atlantic Click Here Click Here Chen Impacts of Gulf Stream Variations on Marine Post Frontal Cloud Transitions Click Here Click Here Li Quantifying Aerosol-Cloud Interactions Click Here Click Here Tang Single-Column Model Simulations: Results and Plan Click Here Click Here Zhang Emergent Properties of Complex Aerosol-Cloud-Meteorology Interactions Click Here Click Here Zuidema Cold air outbreak analysis Click Here Click Here Tornow Updates on efforts for cold-air outbreak cloud feedback Click Here Click Here Sorooshian Open discussion on data usage lessons Click Here Click Here Cutler Data gridding Click Here Click Here Cairns RSP Liquid Water Path Click Here Click Here Diskin DLH Update Click Here Click Here Sorooshian Overview paper goals: what do we want to tell the community about the project Click Here Click Here Schlosser/Dmitrovic Updates on platform collocation data product and aerosol property closure Click Here Click Here Ziemba Absorbing aerosol vertical profiles over Bermuda Click Here Click Here Ferrare Aerosol hygroscopicity derived from HSRL-2 measurements Click Here Click Here Park Idealized cold air outbreak ensemble simulations Click Here Click Here Xu Intercomparison of PBLH methods Click here Click Here Wang Organic surface coating analysis and modeling Click Here Click Here

    November 2022

    The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) team hosted an open data workshop on November 7, 2022 for anyone interested in learning how to access and visualize airborne data. This workshop went over the progress of the ACTIVATE campaign to date, as well as diving into some of the measurement techniques and data archival processes. The workshop featured talks by all groups associated with the science team to discuss status and applications associated with instrument and modeling datasets. The webinar aimed to motivate the ongoing studies of aerosol-cloud interactions and the importance of airborne measurements.

    Materials
    Open Data Workshop Agenda Presenter Title View Slides (PDF) Download Video Presentation (mp4) Sorooshian Welcome/Introductions/Logistics/Goals Click Here Click Here Smith Remarks by Deborah Smith Click Here Click Here Sorooshian Overall Team Progress to Date Click Here Click Here Shook LaRC/ASDC Data Team Click Here Click Here ASDC LaRC/ASDC Data Team Click Here Click Here Ziemba/Crosbie Falcon: LARGE (aerosol, cloud water) Click Here Click Here DiGangi Falcon: Gas Click Here Click Here Moore Falcon: Cloud + CCN Click Here Click Here Voigt Falcon: Cloud + CCN Click Here Click Here Thornhill Falcon: TAMMS Click Here Click Here Bennett King Air: Navigation/Meteorology Click Here Click Here Cairns King Air-RSP Click Here Click Here Shingler King Air-HSRL2 Click Here Click Here Thornhill/Robinson King Air: Dropsondes Click Here Click Here Zuidema U-Miami Click Here Click Here McComiskey Brookhaven National Laboratory Click Here Click Here Painemal LaRC Satellite group Click Here Click Here Zeng U-Arizona Click Here Click Here Wang PNNL Click Here Click Here Tornow/Ackerman NASA GISS Click Here Click Here Liu LaRC/NASA Click Here Click Here Sorooshian Team Updates Click Here Click Here

    September 2022

    The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) team led an open data workshop webinar hosted by the National Association of Geoscience Teachers (NAGT) for anyone interested to learn how to access and visualize airborne data. This webinar went over the science motivation of ACTIVATE, as well as included activities to expose participants to Python. The webinar aimed to motivate the study of aerosol-cloud interactions and the importance of airborne measurements as well as use the Google Colaboratory (Google Colab) environment to examine atmospheric properties derived from both in situ and remote sensing products.

    Materials
    Webinar Recording Webpage

    July 2022

    The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) team hosted a free open data workshop webinar series for anyone interested to learn how to use the airborne data and to promote dialogue about data analysis ideas and collaborative projects in the area of aerosol-cloud-meteorology interactions. This particular session trained interested attendees to use a Google Colaboratory (i.e., Google Colab) environment for data visualization and to examine atmospheric properties derived from both in situ and remote sensing products.

    Materials
    Tools for Analyzing Datasets from ACTIVATE (TADA)
    Create a Gmail Account
    Setup EarthData Login
    ACTIVATE Research Flight 29 Video
    11 July 2021: Webinar activities (Slides 19-39) Presented to Philippines high schools and universities

    October 2021

    The ACTIVATE team hosted an open data workshop with over 70 participants over a two-day period from October 20-21, 2021. The purpose of this workshop was to introduce the ACTIVATE project to a larger, international, pool of atmospheric sciences and applications communities. The first day of the workshop covered how to access and utilize ACTIVATE data, a case study on ACTIVATE Research Flight 12 – a statistical survey flight, and ended with a discussion on using data. Day two began with the second case study on Research Flights 13 and 14 – both of which were process study flights – and ended with a continuation on the discussion from the previous day.

    Materials
    Meeting Agenda
    Day 1 Video
    Day 2 Video
    ACTIVATE Research Flight 29 Video

    Presenter Title Download Recording with Audio Download Slides (PDF) Sorooshian Introduction to ACTIVATE Click Here Click Here Ziemba Langley Aerosol Research Group Experiment (LARGE) Instrumentation Click Here Click Here Moore Langley Aerosol Research Group Experiment (LARGE) Cloud Instrumentation Click Here Click Here Kirschler German Aerospace Center (DLR) Cloud Measurements Click Here Click Here Crosbie Cloud Water Click Here Click Here Diskin Diode Laser Hygrometer (DLH) and Trace Gas Click Here Click Here Thornhill Turbulent Air Motion Measurement System (TAMMS) Click Here Click here Robinson Dropsondes Click Here Click Here Hostetler High Spectral Resolution Lidar (HSRL) - 2 Click Here Click Here Cairns Research Scanning Polarimeter (RSP) Click Here Click Here Corral Explaining Leg Indices Click Here Click Here Delgado Co-Locating Measurements Click Here Click Here Schlosser Intro to Data Visualization Click Here Click Here Wang WRF Process Modeling Click Here Click Here Liu/Zhang MERRA-2 Reanalysis & Trajectory Products Click Here Click Here Tornow GISS Modeling - Understanding Cloud Transitions in Cold Air Outbreaks Click Here Click Here Chellappan Cold Air Outbreaks in ERA5 and MERRA2 Click Here Click Here Painemal NASA Langley Satellite Support Click Here Click Here

    Sub-Orbital Order Tool (SOOT) Power User Interface (PUI) Merge Release Announcement

    Jan 10, 2024

    The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center has released a new merge service as part of the Sub-Orbital Order Tool (SOOT), allowing users to align data to a common time base for easier comparison between files. Currently the merge service is available for ICARTT files on SOOT that are from the same campaign, flight day, launch, and platform. Users can customize their merge options to include or omit specific variables, choose the time base of the merge, and select information to include in the data output (e.g., standard deviation, averages).

    The merge service is now available and users are encouraged to provide feedback on the SOOT merge service via the SOOT Merge Feedback Form.

    Highlighted features of the SOOT Power User Interface (PUI) and the merge service are outlined and demonstrated in this ArcGIS StoryMap.

    More information about the new merge service, including a user guide and detailed documentation of merge functionality, can be found at the following links:
    SOOT Merge User Guide
    SOOT Merge Functionality Document