NASA MEaSUREs Research Project: EASE-Grid 2.0 TB ESDR

An improved, enhanced-resolution, gridded passive microwave ESDR for monitoring cryospheric and hydrologic time series

What's New

The NASA MEaSUREs Research Project: EASE-Grid 2.0 TB ESDR produces improved, enhanced-resolution, gridded passive microwave ESDRs for monitoring cryospheric and hydrologic time series. The data our project produces are available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

Explore our latest news and events, including white papers, data updates, publications, and presentations from along the course of this project.


New white paper available

October 2021: Brightness Temperature Comparison of Enhanced Resolution SSMIS Images Created from CSU ICDR V1 and GPM L1C V5 Files
This recent project white paper compares CETB images derived from alternative near real-time sources.

Version 2 enhanced-resolution SMAP TBs available at NSIDC DAAC 

August 2021: Using the latest reprocessed L1B SMAP TBs, we have reprocessed the complete SMAP Enhanced Resolution CETB data, available from the NSIDC DAAC. More information here:

We are also using the latest SMAP L1B inputs to produce near real-time SMAP CETB images, available by request from Mary Jo Brodzik.

New papers published 

May 2021: See recent TGARS paper investigating band-limited signal reconstruction using SMAP data:

and new NSIDC Technical Reports estimating effective resolution enhancement using actual CETB data:


Enhanced-resolution SMAP TBs delivered to NSIDC DAAC

July 2019: We have used the rSIR algorithm to produce enhanced-resolution SMAP radiometer brightness temperatures as a companion data set to the CETB v1.3 data, available from the NSIDC DAAC. More information here:


Complete CETB v1.3 delivered to NSIDC DAAC

April 2018: We have completed submission of the entire SMMR, SSM/I-SSMIS and AMSR-E collection of CETB v1.3 data to the NSIDC DAAC, more information here:


Check out our ePoster at the 2017 Fall AGU meeting 

December 2017: We are experimenting with an "eLightning" poster this year at AGU, Usability and Interoperability Improvements for an EASE-Grid 2.0 Passive Microwave Data Product Using CF Conventions

The looming gap in microwave data

November 2017: Article interviewing NSIDC's Walt Meier and Dave Gallagher about the looming gap in microwave data: 

Our AGU 2017 presentations 

October 2017: We are co-chairing a great session at AGU this year. We have a great schedule of speakers highlighting the CETB data and discussing the near future of passive microwave observations. Put it on your calendar and join us in New Orleans!

CETB v1.2 data complete

September 2017: Our CETB ESDR is complete and available from NSIDC DAAC for all sensors (SMMR, six SSM/Is, four SSMISs and AMSR-E):


2016 Eastern Snow Conference poster

June 2016: See our poster demonstrating improved melt onset results using our CETB prototype data at glacier margins and transition zones:

2016 TGARS paper

May 2016: See our recent paper describing the image reconstruction techniques we have investigated:

2016 Ocean Sciences poster

February 2016: Find us at the 2016 Ocean Sciences meeting in New Orleans, our poster #OD24C-2478:

New white papers

January 2016: We have recently posted the following white papers describing illustrations of our image reconstruction algorithms:


Our AGU 2015 presentations

December 2015: Please stop by our 2015 AGU poster (Wednesday morning GC31D-1218 ):

New white papers available

April 2015: We have recently completed the following white papers describing details of our image reconstruction efforts:

Our AGU 2014 presentations

January 2015: For some of our recent work, please note our 2014 AGU presentations:

Endorse the Joint Declaration of Data Citation Principles

One of our goals in producing a new Earth Science Data Record is to contribute a systematic, reliable data set for use in scholarly research. When researchers use our data set in scholarly publications, we encourage the good practice of proper data citation.  Please consider endorsing the Joint Declaration of Data Citation Principles, and committing to adopting these guidelines in your own publications that rely on scientific data sets.

Early adopters needed

When we make prototype products available in summer 2015, would you be willing to evaluate them and provide us feedback, as a potential early adopter of the data? If so, please contact Mary Jo Brodzik.