There is a scientific need for more frequent global surface reflectance observations for land monitoring applications. To address this need, observations from instruments on multiple platforms can be used to improve temporal coverage. To combine data from similar instruments and platforms, the data must be harmonized, or made more consistent. To provide the frequent observations needed, the Harmonized Landsat-8 Sentinel-2 (HLS) data products were developed by a team at Goddard Space Flight Center. The HLS algorithm had been implemented for more than 120 test sites worldwide covering approximately 28% of the globe.

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Global coverage demanded cloud-level performance

As described in an earlier blog post, the…


Not long ago, we published a post about the work IMPACT’s Airborne Data Management Group’s (ADMG) is doing to increase discovery of and access to airborne and field investigation data and information. However, that is only part of ADMG’s scope. The ADMG team also works to improve communication between data producers, archivers, and science users, as well as to recommend better airborne data management practices for NASA’s Earth Observing System Data and Information System (EOSDIS).

ADMG summarizes both historical campaigns and NASA facility instrument efforts to assist with determining which Distributed Active Archive Center (DAAC) should archive and manage the…


The new year kicks off with the American Meteorological Society’s annual meeting, and IMPACT will be represented. Below are previews of the must-see presentations IMPACT team members will be delivering on commercial satellite data, improved data resolution, and improving data discoverability and access.

Commercial Small Satellite Data Discovery and Access to Support Scientific Research
Wednesday, January 13, 2021. 12:50 PM — 12:55 PM

The NASA Commercial Smallsat Data Acquisition (CSDA) program identifies, evaluates, and acquires data from commercial satellite companies. This data complements NASA’s Earth science missions and research goals. Data acquired as part of this program includes satellite imagery…


NASA’s Earth Science Data Systems (ESDS) program that manages all of NASA’s Earth science data is facing new sets of challenges in data management, processing, and analysis due to the anticipated growth of Earth science data. To address these unprecedented challenges, ESDS is starting to leverage advanced data-driven technologies such as artificial intelligence and machine learning (AI/ML) in all facets of the science data lifecycle management.

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Dr. Manil Maskey, a research scientist with NASA’s Marshall Space Flight Center, Huntsville and lead of IMPACT’s Advanced Concepts team, will be presenting a webinar for the IEEE Geoscience and Remote Sensing Society titled…


The EGU General Assembly 2021 is fast approaching, and IMPACT is convening the session Addressing Training Data Challenges to Accelerate Earth Science Machine Learning. Progress in artificial intelligence (AI) and machine learning (ML) is driven by data. Data, specifically, large-scale and openly-accessible training data are critical to the adoption and acceleration of ML.

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Access to high-quality labeled training data is required to enable ML practitioners to tackle supervised learning problems in Earth science. However, creating labeled data that scales is still a bottleneck, and new strategies to increase the size and diversity of training datasets need to be explored. …


This year’s AGU Fall meeting has ended. Earlier we posted about a group of high school students who presented their research at AGU in partnership with an IMPACT team member. This is not the only way in which IMPACT supports student scientists at AGU. Four IMPACT team members who are graduate research assistants or undergraduate interns at the University of Alabama in Huntsville also had the opportunity to present research at AGU.

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Deep Learning PM2.5 Estimation

Graduate research assistant Manisha Khatri presented a deep learning approach to estimating surface PM2.5 levels. This research uses satellite and meteorological data and applies deep learning methods to…


AGU is almost here. Below are previews of three presentations you will not want to miss.

Phenomena Portal: Large-Scale Visual Exploration of Atmospheric Phenomena
IN028 — Applying Artificial Intelligence Tools and Services on Earth System Science Data II

The Earth science community is experiencing a high influx of remote sensing data due to recent advancements in sensor technology. This enables the community to extend their research on a larger scale than ever before. Unfortunately, traditional data processing techniques do not scale well to these new, high volume data sources. State-of-the-art machine learning (ML) pipelines have been proven to overcome these…


At IMPACT we’re all about science: Earth science, computer science, data science. We also make sure to nurture the next generation of scientists. Day-to-day that typically involves incorporating graduate research assistants and undergraduate interns into our research and development processes. But we also have team members who work with emerging scientists at the high school level. One example is IMPACT team member Dr. Chelle Gentemann, and her colleague Dr. García Reyes, who work with the Careers in Science (CiS) intern program which is part of the California Academy of Sciences in San Francisco, CA. …


We are now not all that far from AGU Fall 2020, and our team is hard at work preparing a number of presentations. We have been posting a series of presentation previews (the first two are here and here). Below are three more presentations we will be sharing with you during the conference.

Improved Data Communication, Understanding and Discovery Using Algorithm Theoretical Basis Documents
Session IN047 — Recent Advancements in Earth Science Data Discovery and Metadata Stewardship Practices

Scientists and data repositories depend on the effective communication of the scientific and physical theories used to derive Earth observation datasets from…


The American Geophysical Union’s #AGU20 Fall Meeting is just around the corner. We have another set of previews of the presentations that IMPACT team members will be delivering at #AGU20.

Pipeline for Applications-Based Data Discovery
IN047 — Recent Advancements in Earth Science Data Discovery and Metadata Stewardship Practices

From disaster response and mitigation to monitoring water quality or protecting wildlife habitat, satellite Earth observation data can be applied in countless ways to meet pressing needs and benefit society. The crucial first step toward successful data application is data discovery. …

IMPACT Unofficial

This is the unofficial blog of the Interagency Implementation and Advanced Concepts Team.

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