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Posted on by Nyssa Rayne Posted in News and Events

Terra Operational Changes and Data Updates

Over the past three years, the Terra mission has performed multiple maneuvers that have led to changes in the satellite’s consistent 20+ year orbit*. Today, Terra continues slowly drifting to an increasingly earlier overpass time and lower altitude. While the orbital changes have had little to no impact on instrument data collection or quality, data users have expressed the need for regular updates on Terra’s equator crossing time (in Mean Local Time), as well as orbital altitude. Starting this month, we’ll be adding this information to the Terra homepage and updating it bi-weekly using data provided by the Flight Dynamics Team.

Finally, processing of ASTER data has re-started, with updated Level-1processing to account for the lower Terra orbit. Processing of the previously-collected data since late October 2022 to the end of June 2023 is also taking place. See the infographic provided on the Terra website for more information, and for the latest news on all things related to Terra data, visit the Alerts and Issues page available on the LAADS DAAC website (linked here).

*For more information about Terra’s orbit changes, check out the January/February 2023 edition of The Earth Observer — linked here — for summaries of two recent NASA-hosted webinars pertaining to these changes, or visit the Terra website.

Terra Instrument Check-In

Here’s a list of 2023 happenings and publications for each Terra instrument:

ASTER:

The 52nd ASTER Science & Interface Meeting was held at the Kikai Shinko Kaikan in Minato-ku, Tokyo, Japan from September 11-15, 2023 (group photo posted below). The meeting included two Plenary sessions, as well as presentations from ASTER working groups, including Operations and Mission Planning (OMP), Applications, Calibration and Validation, Temperature-Emissivity Separation (TES), and the Science Team Acquisition Request (STAR) groups. Meeting presentations showcased diverse applications of ASTER data in various fields and activities, including mineral and other geologic mapping projects, coastal monitoring activities, cryospheric studies, machine learning models for urban land dynamics, and volcanic eruption precursor detection. Additionally, updates were provided on the ASTER Volcano Archive and the Global Land Ice Measurements from Space (GLIMS) Database. A copy of meeting presentations are available upon request.

Photo credit: Mako Komoda, Japan Space Systems

CERES:

The next CERES meeting will be held in-person from October 17-19, 2023 at NASA Goddard Institute for Space Studies, in New York City, NY. See the “Meeting Logistics and Recommended Hotels” link on the CERES website for more information about attending the meeting and a link to the full agenda (also linked here). Many exciting speakers are scheduled to speak at the meeting, so check back to the Terra website often for an update and summary after the meeting!

MISR:

The MISR team has been working hard on algorithm adjustments needed to finalize the Level-1 data processing take into account the effects of Terra’s orbit lowering in October 2022. Additional updates on the status of this process will be posted on the Terra website, including a notice when processing has begun.

MISR was highlighted during a biannual summer workshop, hosted by NASA Disasters program, to support dialogue and collaboration between NASA experts and members of the Volcanic Ash Advisory Centers (VAACs) team. Find out more about this partnership in a recently-published story from the Disasters program, linked here!

MODIS & MOPITT:

Miguel Román (MODIS) and Helen Wooden (MOPITT) both attended the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) Meteorological Satellite Conference 2023 that took place in Malmö, Sweden, from September 11-15, 2023. A (beautiful) group photo from the meeting is included below.

Miguel Román participated in several sessions to discuss EUMETSAT’s plans for morning-orbit polar orbiting observations. As recommended by NASA’s Terra, Aqua, and Aura Data Continuity Workshop, the EUMESAT Multispectral Visible Infrared Imager (METImage) on the Metop-SG A satellite, due to launch in December 2024, is being explored as a possible source of morning data product continuity, currently represented by the suite of standard science products generated from the MODIS instrument onboard Terra.

Helen Worden presented trends using the MOPITT data record of global carbon monoxide (CO) and plans for continuation of the MOPITT record using MetOP/IASI, NOAA/CrIS and ESA/TROPOMI data. The MOPITT team has long collaborated with the EUMETSAT IASI instrument team on satellite data inter-comparisons. Comparisons with MOPITT data have been especially important for new instruments in space, since MOPITT has the longest available record of satellite CO observations. The EUMETSAT meeting had many useful presentations on atmospheric composition and trends, among other interesting topics, with plenty of networking opportunities for developing new ideas for research and plans for data continuity.

Photo Credit: EUMETSAT

Posted on by Nyssa Rayne Posted in News and Events

April 20th is officially “Earth Day,” and NASA is celebrating with a hybrid event! Join us in-person (if you’re close to Union Station in Washington D.C.) or online! See the official NASA Earth Day website (linked here) or scan the QR code on the graphic below for more information and (free!) registration! (And if you’ll be joining us online, there’s a sneak preview of NASA’s all new interactive online platform called NASA Science Now — linked here and example shown below!)

Three panels of information: 1) Virtual Event Online Everywhere; Join the Live Celebration on April 20 at go.nasa.gov/NASAScienceNow; image of QR code. 2) Join NASA's Earth Day Hybrid Event 3) Free and Open to the Public - In-person event, Washington, D.C.; Union Station, Main Hall; April 20-21, 2023; 9:30 AM - 4:00 PM Daily.
3D virtual auditorium with people seated in chairs in front of three screens, two advertising virtual webinars and the middle showing "Science Theater" and agenda information that will be active on April 20, 2023.
Detailed agenda of Webinars 1 and 2 to be held live on Earth Day. For complete list of events, visit https://eospso.nasa.gov/sites/default/files/publications/2023earthdayspeakers.pdf.
See full agenda (linked here) and find out more on the NASA 2023 Earth Day Website, linked here.

Posted on by Nyssa Rayne Posted in News and Events

Spring is here — and so are the Terra science team meetings and workshops! Here’s a list of upcoming Team Meetings and Workshops related to the Terra mission, with additional information about each in the post below this list.

  • 2023 MODIS/VIIRS Science Team Meeting
  • 2023 NASA Land-Cover and Land-Use Change (LCLUC) Science Team Meeting
  • CERES 38th Science Team Meeting
  • UCAR Remote Sensing Initiative Workshop
  • NASA’s Terra, Aqua, and Aura Data Continuity Workshop

2023 MODIS/VIIRS Science Team Meeting

The MODIS/VIIRS Science Team Meeting will be held May 1- 4, 2023 at The Hotel at The University of Maryland. Registration will be available soon. Stay tuned to the MODIS Website for more information as it’s made available.

2023 NASA Land-Cover and Land-Use Change (LCLUC) Science Team Meeting 

NASA’s Carbon Cycle & Ecosystems (CC&E) focus area will be hosting the next Joint Science Workshop (JSW) on May 8-12, 2023 at The Hotel in College Park, MD. The first two days (May 8-9) will be LCLUC meeting with an emphasis on the early career scientists’ projects. Next two days will be joint meeting with other NASA Earth Science programs of the Carbon Cycle and Ecosystems Focus Area at plenary sessions. For more information, visit the LCLUC Meeting website.

CERES 38th Science Team Meeting

The CERES 38th Science Team Meeting will be held May 9-11, 2023 at the Pearl Young Theater on the campus of Langley Research Center, Hampton VA. For more information and a PDF of the agenda, please visit the CERES website.

UCAR Remote Sensing Initiative Workshop

This new Initiative provides a focal point for UCAR satellite remote sensing instrumentation, data and science activities, and promotes collaboration across the organization. For more information on this event, visit the UCAR Remote Sensing Initiative website.

NASA’s Terra, Aqua, and Aura Data Continuity Workshop

Image of the three satellites - Terra, Aqua, and Aura - with the following text: Request for Information to inform NASA's Terra, Aqua, and Aura Data Continuity Workshop

NASA recently released a new NASA Request for Information (RFI), seeking input from the science community and stakeholders on data product continuity needs, capabilities, and gaps as NASA’s Terra, Aqua, and Aura missions reach the end of their operational life.

NASA will use these RFI responses to help plan a Terra/Aqua/Aura data continuity workshop. This workshop will determine needs, evaluate current capabilities, identify gaps, and specify potential actions for these missions. The Terra, Aqua, and Aura Data Continuity Workshop will be virtual and is currently scheduled for May 23-25, 2023, from 11am – 4pm Eastern Time.

For more information and updates, visit the NASA NSPIRES platform (linked above), review the full RFI PDF linked here, or see the following linked FAQ document.

Posted on by Nyssa Rayne Posted in News and Events

From undergoing an orbit lowering to headlining workshops on novel drifting data, Terra has had a big year so far! (And that’s not even accounting for the satellite’s continuous collection of high quality, earth science data, with no unintended interruptions!)

This news post will provide several important updates on recent instrument team meetings, upcoming virtual workshops featuring Terra, and an overview of three early career scientists using Terra data in their research.

Keep checking the website often for more updates and information on all things Terra!

2022 Meetings and Conferences

  • The CERES instrument team participated in the Fall 2022 Earth Radiation Budget Workshop in Hamburg, Germany from October 12 – 14, 2022. More information, including an agenda and presentation slide decks, can be found on the CERES website.
  • Several members of the Terra team participated in the 22nd William T. Pecora Memorial Remote Sensing Symposium in Denver, CO from October 23 – 28, 2022. More information available on the Pecora 22 website.
  • The ASTER instrument team will hold a science and interface meeting in Tokyo, Japan from November 7-9, 2022.
  • The American Geophysical Union (AGU) Fall 2022 meeting will be held in Chicago, IL from December 12 – 16, 2022. For more information and an agenda, visit the AGU Fall Meeting 2022 website.

Upcoming Terra Workshops and Community Forums

Here’s a reminder that it’s your last chance to sign up for the virtual Terra, Aqua, and Aura Drifting Orbits Workshop that starts tomorrow, November 1-2, 2022. For more information and registration, visit the Terra website (or register here!).

On December 8th, 2022 from 12:30 PM – 3:30 PM ET, the Terra team will be hosting a virtual community forum on Terra’s recent orbit lowering maneuvers (that took place October 12th and 18th). See the graphic below for more information and a QR code linking directly to the Webex webinar registration page.

Infographic on upcoming virtual community forum on Terra satellite's new lower orbit.
Information on Terra’s Lower Orbit Community Forum (virtual webinar) scheduled for December 8, 2022, from 12:30 PM to 3:30 PM ET.

Highlighting Two Decades of Terra Talent

Last week, several NASA Early Career researchers presented their current scientific work during the 2022 Early Career Scientist Forum (full agenda linked here).

Kathleen McKee

Explosive Volcanic Eruption Dynamics

Kathleen incorporates data from Terra’s Multi-Angle Imaging Spectroradiometer (MISR) instrument to analyze volcanic ash and aerosols throughout the atmospheric column.

Personal website linked here, and NASA Bio linked below.

Kathleen’s NASA Bio

Ryan Kramer

Global Radiation Budget and Modeling

Ryan uses data from the Clouds and Earth’s Radiant Energy System (CERES) instrument to improve how climate models handle future precipitation predictions.

Link to Ryan’s Early Career Scientist Spotlight, and NASA Bio linked below.

Ryan’s NASA Bio

Andy Feldman

Soil – Plant – Atmosphere Interactions

Andy uses satellite products, like the Normalized Difference Vegetation Index from the Moderate Resolution Imaging Spectroradiometer (MODIS), to analyze how changes in precipitation intensity and frequency impacts plant photosynthesis.

Academic Bio linked here, and NASA Bio linked below.

Andy’s NASA Bio

Posted on by Nyssa Rayne Posted in News and Events

NASA previously released a Request for Information (RFI) on a Terra, Aqua, and Aura Drifting Orbits Workshop, for which the response date is October 11, 2022. 

The Terra, Aqua, and Aura Drifting Orbits Workshop will be held virtually on November 1-2, 2022. The Workshop Agenda has been posted on the NSPIRES page for this RFI. To attend please register at https://science.nasa.gov/earth-science/terra-aqua-and-aura-drifting-orbits-workshop-registration, or use the QR code in the image below.

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