Hamed Alemohammad

Associate Professor, Geography
Director of Center for Geospatial Analytics

Hamed Alemohammad is an Associate Professor in the Graduate School of Geography and Director of the Center for Geospatial Analytics at Clark University. He is a technical leader and interdisciplinary scholar with extensive expertise and knowledge in remote sensing, earth science, and artificial intelligence (AI). His research interest lies at the intersection of geospatial analytics/AI and geography to use observations to better understand the changing Earth system.

Hamed has been the PI for several projects focused on developing novel AI models for multispectral, microwave and synthetic aperture radar (SAR) satellite observations. In recent years, his research has been focused on development and application of geospatial foundation models. He also serves as a member of the Technical Advisory Committee of Digital Earth Africa.

Prior to Clark University, Hamed was the Chief Data Scientist and Executive Director at Radiant Earth where he established and led the development of Radiant MLHub – the open-access repository for geospatial training data and AI models. Hamed received his Ph.D. in Civil and Environmental Engineering from MIT.

Degrees

  • Ph.D. in Civil and Environmental Engineering, Massachusetts Institute of Technology, 2015
  • M.S. in Water Resources Engineering, Sharif University of Technology, 2009
  • B.S. in Civil and Environmental Engineering, Sharif University of Technology, 2007

Scholarly and creative works

  • Article in Refereed Journal

    Yield estimation from SAR data using patch-based deep learning and machine learning techniques

    Published in Computers and Electronics in Agriculture
    2024
    Vol. 226
    Mahya G.Z. Hashemi, Pang-Ning Tan, Ehsan Jalilvand, Brook Wilke, Hamed Alemohammad, Narendra N. Das
  • Article in Refereed Journal

    Prithvi-EO-2.0: A Versatile Multi-Temporal Foundation Model for Earth Observation Applications

    2024
    Daniela Szwarcman, Sujit Roy, Paolo Fraccaro, Þorsteinn E Gíslason, Benedikt Blumenstiel, Rinki Ghosal, Pedro H de Oliveira, Joao L Almeida, Rocco Sedona, Yanghui Kang, Srija Chakraborty, Sizhe Wang, Ankur Kumar, Myscon Truong, Denys Godwin, Hyunho Lee, Chia-Yu Hsu, Ata A Asanjan, Besart Mujeci, Trevor Keenan, Paulo Arevalo, Wenwen Li, Hamed Alemohammad, Pontus Olofsson, Christopher Hain, Robert Kennedy, Bianca Zadrozny, Gabriele Cavallaro, Campbell Watson, Manil Maskey, Rahul Ramachandran, Juan B Moreno
  • Article in Refereed Journal

    Local vs. Global: Local Land-Use and Land-Cover Models Deliver Higher Quality Maps

    2024
    Girmaw A Tadesse, Caleb Robinson, Charles Mwangi, Esther Maina, Joshua Nyakundi, Luana Marotti, Gilles Q Hacheme, Hamed Alemohammad, Rahul Dodhia, Juan L Ferres
  • Article in Refereed Journal

    Generalization Enhancement Strategies to Enable Cross-year Cropland Mapping with Convolutional Neural Networks Trained Using Historical Samples

    2024
    Sam Khallaghi, Rahebe Abedi, Hanan A Ali, Hamed Alemohammad, Mary D Asipunu, Ismail Alatise, Nguyen Ha, Boka Luo, Cat Mai, Lei Song, Amos Wussah, Sitian Xiong, Yao-Ting Yao, Qi Zhang, Lyndon D Estes
  • Presentations

    Advancing Foundation Models for Geospatial Applications with Scarce Reference Data

    Measuring Development
    Washington, DC
    May
    2024
    Sponsored by The World Bank
    Hamed Alemohammad
  • Presentations

    Advancements and Applications of Foundation Models for Earth Observations

    AWS Sustainability Speaker Series
    Online
    May
    2024
    Sponsored by AWS
    Hamed Alemohammad
  • Presentations

    Fine-Tuning Foundation Models for Downstream Applications of Remote Sensing Data

    AAG Annual Meeting
    Honolulu, HI
    April
    2024
    Sponsored by AAG
    Hamed Alemohammad
  • Presentations

    A New Era for Geospatial Analytics: Advancements and Applications of Foundation Models in Remote Sensing

    Harvard ABCD-GIS / Geography Colloquium
    Cambridge, MA
    March
    2024
    Sponsored by Harvard Center for Geographic Analysis
    Hamed Alemohammad
  • Article in Refereed Journal

    Soil Moisture Profile Estimation by Combining P-band SAR Polarimetry with Hydrological and Multi-Layer Scattering Models

    Published in Remote Sensing of Environment
    2024
    Anke Fluhrer, Thomas Jagdhuber, Carsten Montzka, Maike Schumacher, Hamed Alemohammad, Alireza Tabatabaeenejad, Harald Kunstmann, Dara Entekhabi
  • Papers Published – Conference Proceedings

    Seeing Through the Clouds: Cloud Gap Imputation with Prithvi Foundation Model

    Denys Godwin, Hanxi Li, Michael Cecil, Hamed Alemohammad
  • Article in Refereed Journal

    A Systematic Review of Synthetic Aperture Radar and Deep Learning in Agricultural Applications

    Published in Isprs Journal of Photogrammetry and Remote Sensing
    2024
    Vol. 218
    Mahya Ghazi Zadeh Hashemi, Ehsan Jalilvand, Hamed Alemohammad, Pang-Ning Tan, Narenda Das
  • Presentations

    Applications of Foundation Models in Earth Sciences Applied to Remote Sensing Imagery

    Second U.S.-Africa Frontiers of Science, Engineering, and Medicine Symposium
    Rabat, Morocco
    January
    2024
    Sponsored by National Academies of Science, Engineering and Medicine
    Hamed Alemohammad
  • Presentations

    Transforming Earth Observation Analytics: Advancements and Applications of Foundation Models in Remote Sensing

    IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)
    Waikoloa, HI
    January
    2024
    Sponsored by IEEE
    Hamed Alemohammad
  • Article in Refereed Journal

    Foundation Models for Generalist Geospatial Artificial Intelligence

    2023
    Johannes Jakubik, Sujit Roy, C. E Phillips, Paolo Fraccaro, Denys Godwin, Bianca Zadrozny, Daniela Szwarcman, Carlos Gomes, Gabby Nyirjesy, Blair Edwards, Daiki Kimura, Naomi Simumba, Linsong Chu, Karthik S Mukkavilli, Devyani Lambhate, Kamal Das, Ranjini Bangalore, Dario Oliveira, Michal Muszynski, Kumar Ankur, Muthukumaran Ramasubramanian, Iksha Gurung, Sam Khallaghi, Michael Cecil, Maryam Ahmadi, Fatemeh Kordi, Hamed Alemohammad, Manil Maskey, Raghu Ganti, Kommy Weldemariam, Rahul Ramachandran
  • Presentations

    Machine Learning Applications with Earth Observations

    GIZ FAIR Forward Training on ML4EO
    Kigali, Rwanda
    June
    2023
    Sponsored by GIZ
    Hamed Alemohammad
  • Presentations

    Panel on Geospatial Edge Computing

    Oak Ridge, TN
    June
    2023
    Sponsored by Oak Ridge National Lab
    Hamed Alemohammad
  • Presentations

    Incorporating Training Data Uncertainty in Machine Learning Models for Satellite Imagery

    EGU General Assembly
    Vienna, Austria
    April
    2023
    Hamed Alemohammad
  • Presentations

    A New Era for Geospatial Analytics

    The Graduate School of Geography Centennial
    Worcester, MA
    April
    2023
    Hamed Alemohammad
  • Presentations

    Amplifying Impact through Collaborative Ecosystems for Geospatial Analytics

    GeoBuiz Summit
    Monterey, CA
    March
    2023
    Hamed Alemohammad
  • Papers Published – Conference Proceedings

    GEO-Bench: Toward Foundation Models for Earth Monitoring
    2023 NeurIPS

    2023 NeurIPS
    Dec
    2023
    Alexandre Lacoste, Nils Lehmann, Pau Rodriguez, Evan D Sherwin, Hannah Kerner, Björn Lütjens, Jeremy A Irvin, David Dao, Hamed Alemohammad, Alexandre Drouin, Mehmet Gunturkun, Gabriel Huang, David Vazquez, Dava Newman, Yoshua Bengio, Stefano Ermon, Xiao X Zhu
  • Presentations

    Exploring Effectiveness of Foundation Models for Downstream Applications on Satellite Data

    AGU Fall Meeting
    San Francisco, CA
    December
    2023
    Sponsored by AGU
    Hamed Alemohammad
  • Presentations

    Reenvisioning the Geospatial Curriculum

    The Geospatial Workforce Crisis: A Diversity of Pathways Forward
    Washington, DC
    November
    2023
    Sponsored by National Academies of Sciences, Engineering, and Medicine
    Hamed Alemohammad
  • Presentations

    The Landscape of Geospatial AI Applications

    Practicing Geography Week and GIS Week
    Clark University
    November
    2023
    Sponsored by Clark University Graduate School of Geography
    Hamed Alemohammad
  • Article in Refereed Journal

    Tropical cyclone wind speed estimation: A large scale training data set and community benchmarking

    Published in Earth and Space Science
    2023
    Vol. 10
    Issue #3
    Iksha Gurung, Muthukumaran Ramasubhramanian, Brian Freitag, Aaron Kaulfus, Manil Maskey, Rahul Ramachandran, Hamed Alemohammad
  • Article in Refereed Journal

    Surface water dynamics from space: a round robin intercomparison of using optical and sar high-resolution satellite observations for regional surface water detection

    Published in Remote Sensing
    2022
    Vol. 14
    Issue #10
    Christian Tottrup, Daniel Druce, Rasmus Probst Meyer, Mads Christensen, Michael Riffler, Bjoern Dulleck, Philipp Rastner, Katerina Jupova, Tomas Sokoup, Arjen Haag, Hamed Alemohammad, others
  • Article in Refereed Journal

    Toward Foundation Models for Earth Monitoring: Proposal for a Climate Change Benchmark

    Alexandre Lacoste, Evan D Sherwin, Hannah Kerner, Hamed Alemohammad, Björn Lütjens, Jeremy Irvin, David Dao, Alex Chang, Mehmet Gunturkun, Alexandre Drouin, Pau Rodriguez, David Vazquez
  • Article in Refereed Journal

    Accounting for training data error in machine learning applied to Earth observations

    Published in Remote Sensing
    2020
    Vol. 12
    Issue #6
    Arthur Elmes, Hamed Alemohammad, Ryan Avery, Kelly Caylor, J Ronald Eastman, Lewis Fishgold, Mark A Friedl, Meha Jain, Divyani Kohli, Bayas, Laso, others
  • Article in Refereed Journal

    LandCoverNet: A global benchmark land cover classification training dataset

    Hamed Alemohammad, Kevin Booth
  • Article in Refereed Journal

    Generating Synthetic Multispectral Satellite Imagery from Sentinel-2

    Tharun Mohandoss, Aditya Kulkarni, Daniel Northrup, Ernest Mwebaze, Hamed Alemohammad
  • Article in Refereed Journal

    Semantic Segmentation of Medium-Resolution Satellite Imagery using Conditional Generative Adversarial Networks

    Aditya Kulkarni, Tharun Mohandoss, Daniel Northrup, Ernest Mwebaze, Hamed Alemohammad
  • Article in Refereed Journal

    Proceedings of the ICLR Workshop on Computer Vision for Agriculture (CV4A) 2020

    Yannis Kalantidis, Laura Sevilla-Lara, Ernest Mwebaze, Dina Machuve, Hamed Alemohammad, David Guerena
  • Article in Refereed Journal

    Physics-Based Modeling of Active and Passive Microwave Covariations Over Vegetated Surfaces

    Published in IEEE Transactions on geoscience and remote sensing
    2019
    Vol. 57
    Issue #2
    Thomas Jagdhuber, Alexandra G Konings, Kaighin A McColl, Seyed Hamed Alemohammad, Narendra Narayan Das, Carsten Montzka, Moritz Link, Ruzbeh Akbar, Dara Entekhabi
  • Article in Refereed Journal

    Climatic or regionally induced by humans? Tracing hydro-climatic and land-use changes to better understand the Lake Urmia tragedy

    Published in Journal of Hydrology
    2019
    Bahram Khazaei, Sina Khatami, Seyed Hamed Alemohammad, Lida Rashidi, Changshan Wu, Kaveh Madani, Zahra Kalantari, Georgia Destouni, Amir Aghakouchak
  • Article in Refereed Journal

    Soil and Vegetation Scattering Contributions in L-Band and P-Band Polarimetric SAR Observations

    Published in IEEE Transactions on Geoscience and Remote Sensing
    2019
    S. H. Alemohammad, T. Jagdhuber, M. Moghaddam, D. Entekhabi
  • Article in Refereed Journal

    Land–atmosphere interactions in the tropics–a review

    Published in Hydrology and Earth System Sciences
    2019
    Vol. 23
    Issue #10
    Pierre Gentine, Adam Massmann, Benjamin R Lintner, Alemohammad, Sayed Hamed, Rong Fu, Julia K Green, Daniel Kennedy, Jordi Arellano
  • Article in Refereed Journal

    Characterization of Vegetation and Soil Scattering Mechanisms across Different Biomes using P-band SAR Polarimetry

    Published in Remote Sensing of Environment
    2018
    Vol. 209
    Seyed Hamed Alemohammad, Alexandra G Konings, Thomas Jagdhuber, Mahta Moghaddam, Dara Entekhabi
  • Article in Refereed Journal

    Estimating surface soil moisture from SMAP observations using a Neural Network technique

    Published in Remote sensing of environment
    2018
    Vol. 204
    J Kolassa, R H Reichle, Q Liu, S H Alemohammad, P Gentine, K Aida, J Asanuma, S Bircher, T Caldwell, A Colliander, others
  • Article in Refereed Journal

    Global downscaling of remotely sensed soil moisture using neural networks

    Published in Hydrology and Earth System Sciences
    2018
    Vol. 22
    Issue #10
    S. H. Alemohammad, J. Kolassa, C. Prigent, F. Aires, P. Gentine
  • Article in Refereed Journal

    RSIF (Reconstructed Solar Induced Fluorescence): a machine-learning vegetation product based on MODIS surface reflectance to reproduce GOME-2 solar induced fluorescence

    Published in Geophysical Research Letters
    2018
    P Gentine, S H Alemohammad
  • Article in Refereed Journal

    Tall Amazonian forests are less sensitive to precipitation variability

    Published in Nature Geoscience
    2018
    Francesco Giardina, Alexandra G. Konings, Daniel Kennedy, Seyed Hamed Alemohammad, Rafael S. Oliveira, Maria Uriarte, Pierre Gentine
  • Article in Refereed Journal

    A global spatially contiguous solar-induced fluorescence (CSIF) dataset using neural networks

    Published in Biogeosciences
    2018
    Vol. 15
    Issue #19
    Yao Zhang, Joanna Joiner, Seyed Hamed Alemohammad, Sha Zhou, Pierre Gentine
  • Article in Refereed Journal

    Generating a Training Dataset for Land Cover Classification to Advance Global Development

    Yoni Nachmany, Hamed Alemohammad
  • Article in Refereed Journal

    Water, Energy, and Carbon with Artificial Neural Networks (WECANN): A statistically-based estimate of global surface turbulent fluxes using solar-induced fluorescence

    Published in Biogeosciences
    2017
    Seyed Hamed Alemohammad, Bin Fang, Alexandra G Konings, Julia K Green, Jana Kolassa, Catherine Prigent, Filipe Aires, Diego Miralles, Pierre Gentine
  • Article in Refereed Journal

    The global distribution and dynamics of surface soil moisture

    Published in Nature Geoscience
    2017
    Vol. 10
    Issue #2
    Kaighin A McColl, Seyed Hamed Alemohammad, Ruzbeh Akbar, Alexandra G Konings, Simon Yueh, Dara Entekhabi
  • Article in Refereed Journal

    Soil moisture retrieval from AMSR-E and ASCAT microwave observation synergy. Part 2: Product evaluation

    Published in Remote Sensing of Environment
    2017
    Vol. 195
    J Kolassa, P Gentine, C Prigent, F Aires, S H Alemohammad
  • Article in Refereed Journal

    Regionally strong feedbacks between the atmosphere and terrestrial biosphere

    Published in Nature geoscience
    2017
    Vol. 10
    Issue #6
    Julia K Green, Alexandra G Konings, Seyed Hamed Alemohammad, Joseph Berry, Dara Entekhabi, Jana Kolassa, Jung-Eun Lee, Pierre Gentine
  • Article in Refereed Journal

    Triple collocation for binary and categorical variables: Application to validating landscape freeze/thaw retrievals

    Published in Remote Sensing of Environment
    2016
    Vol. 176
    K. A. McColl, A. Roy, C. Derksen, A. G. Konings, S. H. Alemohammad, D. Entekhabi
  • Article in Refereed Journal

    Characterization of Vegetation and Soil Scattering Mechanisms across Different Biomes using P-band SAR Polarimetry

    Seyed H Alemohammad, Alexandra G Konings, Thomas Jagdhuber, Mahta Moghaddam, Dara Entekhabi
  • Article in Refereed Journal

    Quantifying Precipitation Uncertainty for Land Data Assimilation Applications

    Published in Monthly Weather Review
    2015
    Vol. 143
    Issue #8
    Seyed Hamed Alemohammad, Dennis B McLaughlin, Dara Entekhabi
  • Article in Refereed Journal

    Characterization of precipitation product errors across the United States using multiplicative triple collocation

    Published in Hydrology and Earth System Sciences
    2015
    Vol. 19
    Issue #8
    S H Alemohammad, K A McColl, A G Konings, D Entekhabi, A Stoffelen
  • Article in Refereed Journal

    Ensemble-based characterization of uncertain environmental features

    Published in Advances in water resources
    2014
    Vol. 70
    Rafa\l W\’ojcik, Dennis McLaughlin, Seyed Hamed Alemohammad, Dara Entekhabi
  • Article in Refereed Journal

    Evaluation of long-term SSM/I-based precipitation records over land

    Published in Journal of Hydrometeorology
    2014
    Vol. 15
    Issue #5
    Seyed Hamed Alemohammad, Dara Entekhabi, Dennis B McLaughlin
  • Article in Refereed Journal

    A Framework for Modelling Probabilistic Uncertainty in Rainfall Scenario Analysis

    Seyed H Alemohammad, Reza Ardakanian, Akbar Karimi
  • Article in Refereed Journal

    Global Warming and Caspian Sea Level Fluctuations

    Reza Ardakanian, Seyed H Alemohammad
  • Article in Refereed Journal

    Merging Satellite Measurements of Rainfall Using Multi-scale Imagery Technique

    Seyed H Alemohammad, Dara Entekhabi
  • Article in Refereed Journal

    Sea Level Rise due to Global Warming (A Literature Review)

    Published in Journal of Civil Engineering Islamic Azad University
    2010
    Vol. 2
    Issue #1
    S H Alemohammad, R Ardakanian

Awards and grants

  • HLS GeoFM Benchmark for Aquaculture and Wetlands

    NASA

    clock icon Aug. 1, 2024 – Jan. 31, 2026
  • Projecting Future Land Cover Change using GenAI

    Taylor Geospatial Institute and AWS

  • Evaluating Performance of a Foundation Model for Optical Earth Observation on Downstream Tasks

    NASA

    clock icon Mar. 1, 2023 – Jan. 31, 2024