Hosted by Michigan State University

The purpose of the 7th Satellite Soil Moisture Validation and Application Workshop is to discuss and reconcile recent methodological advances in the development, validation and application of global satellite soil moisture observations. The workshop series is unique as it brings together satellite soil moisture users and developers with the aim of deriving and exploiting soil moisture from passive and active microwave satellite missions\sensors (SMAP, SMOS, ASCAT, AMRS-2, Sentinel-1, NISAR,  and other legacy missions) as well as optical instruments (e.g., MODIS, Sentinel-2, and others).

The following research questions will be addressed during the 7th workshop:

  • What are the needs of the stakeholders for satellite soil moisture data and how does this influence validation?
  • How can the validation community evolve with the rise in the number of products being generated?
  • What is the future for soil moisture monitoring from space and in situ?
  • Any other relevant topics.

The 7th workshop follows up those held at the Millennium Broadway Hotel in New York (USA, in 2016), at the Vienna University of Technology (Austria, in 2017), at George Mason University (USA, in 2018), and CNR in Perugia (Italy, in 2022).

Important Dates:

May 24, 2024 --- Abstract submission closes

May 28, 2024 --- Author notification

May 28, 2024 --- Registration closes

May 28, 2024 --- Final schedule posted

June 4-6, 2024 -- Workshop

Final Agenda



Day 1: June 4, 2024,  Venue: Lincoln Room

08:00 a.m. – 09:20 a.m.              Breakfast

09:20 a.m. – 09:40 a.m.

Inauguration and presentation by Dr. Narendra Das

Session -1                                  Chair:  Wolfgang Wagner                     Co-Chair:  Alexander Gruber

09:40 a.m. – 10:10 a.m.

Keynote: Status and outlook for the ASCAT and Sentinel-1 soil moisture data services.    Wolfgang Wagner

10:10 a.m. – 10:30 a.m.

Fiducial reference measurements for soil moisture (FRM4SM): Current state and future directions.    Alexander Gruber

10:30 a.m. – 11:00 a.m.

Break for coffee and tea

11:00 a.m. – 11:20 a.m.

Comparison of time-series ratio method bounding techniques using S-band backscatter from the SMEX02 campaign.   Dustin Horton

11:20 a.m. – 11:40 a.m.

Terrestrial water-energy coupling perspective for satellite Cal/Val. Vinit Sehgal

11:40 a.m. – 12:00 p.m.

Results from SMAPVEX19-22 and SMAPVEX22-Boreal to improve forest soil moisture and vegetation optical depth retrieval.     Aaron Berg

12:00 p.m. – 12:20 p.m.

Evaluating SMAP soil moisture product over agroecosystems in southern Texas.       S. Gurau

12:20 p.m. – 01:30 p.m.


Session -2                                  Chair:  Carsten Montzka                    Co-Chair:  Xiaolan Xu

01:30 p.m. – 01:50 p.m.

The Muon space GNSS-R based soil moisture product and satellite constellation.      Ian Colwell

01:50 p.m. – 02:10 p.m.

Fast hybrid method for full wave simulations of vegetation and forests at L-Band with data analysis of SMAPVEX 19-22 experiments.     Jongwoo Jeong

02:10 p.m. – 02:30 p.m.

Advancements in Freeze/Thaw Cycle Studies: Insights from SMAP, SMOS, and Emerging GNSS-R Data. Xiaolan Xu

02:30 p.m. – 03:00 p.m.

Break for coffee and tea

03:00 p.m. – 03:20 p.m

Examining the impact of surface topography on L- and C- band radar signatures for soil moisture retrieval improvement.     Huanting Huang

03:20 p.m. – 03:40 p.m.

NISAR high-resolution soil moisture validation plan in the midwestern United States agricultural region.     Gurjeet Singh

03:40 p.m. – 04:00 p.m.

Development of low-cost handheld soil moisture sensor for farmers and citizen scientists.     Siddhesh Mane

04:00 p.m. – 05:00 p.m.

Quality Assurance for Soil Moisture, Session led by Wolfgang Preimesberger and Alexander Gruber

06:00 p.m. – 07:30 p.m.

Evening Reception




Day 2: June 5, 2024, Venue: Lincoln Room

Session - 3                                  Chair:  Dara Entekhabi                      Co-Chair: Yann H. Kerr

08:00 a.m. – 08:45 a.m.


08:45 a.m. – 09:00 a.m.

Group Photo

09:00 a.m. – 09:30 a.m.

Keynote: Earth system science and applications with the NASA soil moisture active passive (SMAP) mission data: Recent results and plans for algorithm Enhancements.    Dara Entekhabi

09:30 a.m. – 09:50 a.m.

SMOS after 14 years in orbit: results and future plans.    Yann H. Kerr

09:50 a.m. – 10:10 a.m.

SMOS soil moisture and vegetation optical depth based on SMAP retrieval algorithm and SMAP ancillary data.   Julian Chaubell, Rajat Bindlish

10:10 a.m. – 10:30 a.m.

Soil moisture retrievals using spaceborne GNSS-R systems: Progress and Lessons Learned.      Mohammad Al-Khaldi

10:30 a.m. – 11:00 a.m.

Break for coffee and tea

Session - 4                                  Chair:  Rajat Bindlish                          Co-Chair:  Narendra N. Das

11:00 a.m. – 11:20 a.m.

Assessing the time-series ratio algorithm for NISAR soil moisture retrieval.       Jeonghwan Park

11:20 a.m. – 11:40 a.m.

Multi-scale algorithm and uncertainty estimation of high-resolution soil moisture retrievals for NISAR mission.    Preet Lal

11:40 a.m. – 12:00 p.m.

Multi-orbit soil moisture estimation by alpha approximation and                      Sentinel-1.    Carsten Montzka

12:00 p.m. – 12:20 p.m.

Machine-learning high-resolution soil moisture (ML-HRSM 2.0) mapping: performance in rainfed and irrigation crop fields.       Shuohao Cai

12:20 p.m. – 12:40 p.m.

Advancing soil moisture estimation with enhanced SMAP active/passive algorithm for SMAP/NISAR combined framework.     Xiaolan Xu

12:40 p.m. – 02:00 p.m.


Session - 5                                  Chair: Yan Kerr                                  Co-Chair: Dara Entekhabi

02:00 p.m. – 02:20 p.m.

Assessing short-term change detection for soil moisture estimation: a case study over the HOBE network (Denmark).       Miquel Negre Dou

02:20 p.m. – 02:40 p.m.

On the use of SMAP soil moisture for forecasting NDVI over CONUS cropland regions.     Manh-Hung Le

02:40 p.m. – 03:00 p.m.

High spatial resolution soil moisture mapping using L-band radiometer and small uncrewed aerial systems.    Eryan Dai

03:00 p.m. – 03:20 p.m.

Retrieving soil moisture retrievals reliably in subsurface scattering areas at 1km resolution.     Bernhard Raml

03:20 p.m. – 03:40 p.m.

Break for coffee and tea

03:40 p.m. – 04:00 p.m.

Enhancing crop yield prediction by assimilating SMAP and MODIS observations into a crop modeling framework.     Abhijeet Abhishek

04:00 p.m. – 04:20 p.m.

Soil moisture assimilation in a coupled hydrology and agriculture modeling for estimating hydrological and agricultural growth variables.     Pang-Wei Liu

04:20 p.m. – 04:40 p.m.

Optimizing soil physical and hydraulic properties with SMAP soil moisture products for effective water resources management.       Arunav Nanda



Day 3: June 6, 2024

08:00 a.m. – 09:00 a.m.             Breakfast

09:00 a.m. – 01:00 p.m.

Visit to Kellogg Biological Station (KBS), NISAR Core Cal/Val site                       (Travel time one hour, MSU Van)

01:00 p.m. – 02:00 p.m.

Lunch Box

02:00 p.m. – 05:00 p.m.

Visit to South Haven Beach and Van Buren State Park                                (Travel time 1 hour from KBS)

05:00 p.m. – 07:00 p.m.               

Dinner (self) at South Haven

07:00 p.m. – 08:30 p.m.

Return to East Lansing

Lodging Information:

If you require lodging, there is a room block available at the Kellogg Hotel and Conference Center until May 18, 2024. The room rate under the block is $128 a night. Please call 517-432-4000 to book your room. The group block code is: 2406MSUEXT.

You may also book online through the following steps:

To book your lodging visit:

  • Enter the dates you wish to stay
  • Please be sure to change the selection from promotional code to group code to ensure the special rate can be applied.
  • Enter 2406MSUEXT in the group code to receive the discounted rates.

If you require a special government rate exemption please call the hotel at 517-432-4000 and indicate you are with the 7th Satellite Soil Moisture and Application Workshop and provide your government credentials and they will honor the government rate for you.

Supported by

NASA and European Space Agency

Local Organizing Committee (Michigan State University)

Narendra N. Das
Gurjeet Singh
Vikas Rai
Preet Lal
Arunav Nanda
Siddesh Mane

Scientific Advisory Board

Narendra Das, Michigan State University
Wolfgang Wagner, Vienna Technical University
Michael Cosh, USDA-ARS
Nazzareno Pierdicca, University of Rome
John Bolten, NASA-GSFC
Alexander Gruber, Vienna Technical University
John Qu, George Mason University
Carsten Montzka, Forschungszentrum Jülich
Rajat Bindlish, NASA-GSFC
Klaus Scipal, ESA
Dara Entekhabi, MIT
Luca Ciabatta, Istituto di Ricerca per la Protezione Idrogeologica
Mahta Moghaddum, University of Southern California
Luca Brocca, National Research Council, Perugia, Italy
Seungbum Kim, NASA-JPL/CalTech
Zhiliang Zhu, USGS


Michigan State University is committed to providing equal opportunity for participation in all programs, services and activities. Accommodations for persons with disabilities may be requested by contacting the event contact two weeks prior to the start of the event. Requests received after this date will be honored whenever possible.

Contact Information

For more information, contact Narendra Das at or 517-614-7758.