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Hire Dr. Hoyeon S.

Korea, South

USD 50 /hr

Specialist in the Satellite Remote Sensing of Earth

Profile Summary

I’m a PhD-qualified remote sensing scientist with 10+ years of experience analyzing satellite-based observations of the cryosphere, ocean, and atmosphere. My work focuses on retrieving geophysical parameters such as sea ice thickness, snow properties, and atmospheric profiles using microwave and infrared satellite data. I specialize in developing physics-based retrieval algorithms and radiative transfer models, and I also integrate AI/ML approaches for climate and environmental applications. I have a strong academic foundation in electromagnetism, optics, and thermodynamics (BSc in Physics from KAIST, PhD in Remote Sensing from Seoul National University), and currently work at the Danish Meteorological Institute on polar climate monitoring. I’ve contributed to international research projects involving satellite calibration/validation, passive/active microwave remote sensing, and hyperspectral retrievals. Whether you need expert consultation, algorithm development, scientific writing, or data analysis, I can help you turn complex satellite data into actionable insights.

Subject Matter Expertise

• ☆ Remote Sensing
• ☆ Data Analysis
• ☆ Earth & Atmospheric Science
• ☆ Arctic & Antarctic Studies
• ☆ Meteorology
• ☆ Climate Science
• ☆ Atmospheric Chemistry
• ☆ Electromagnetism
• ☆ Radiophysics

Services

• Writing
• Research
• Consulting
• Data & AI

Writing Technical Writing

Research Scientific and Technical Research

Consulting Scientific and Technical Consulting

Data & AI Statistical Analysis, Image Processing, Image Analysis, Data Visualization

Work Experience

Academic Employee

Danish Meteorological Institute

March 2023 - Present

Postdoctoral Research Associate

Seoul National University

September 2021 - February 2023

Education

PhD (School of Earth and Environmental Sciences)

Seoul National University

September 2016 - August 2021

Bachelor (Department of Physics)

Korea Advanced Institute of Science and Technology

February 2012 - August 2016

Certifications

• Machine Learning (Letter of Attendance)

  DTU Compute, Technical University of Denmark

  https://app.diplomasafe.com/en-US/diploma/dcaf44ff39f70e8c3283ab0511c9fad0b2b6377bc/machine-learning

  November 2023 - Present

Publications

PREPRINT

Hoyeon Shi, Gorm Dybkjær, Suman Singha, Sang-Moo Lee, Rasmus Tonboe, Fabrizio Baordo (2025). Retracker-dependent radar freeboard correction methods for satellite radar altimetry-based sea ice thickness estimation .

Hoyeon Shi, Rasmus Tonboe, Sang-Moo Lee, Gorm Dybkjær, Byung-Ju Sohn, Suman Singha, Fabrizio Baordo (2024). A simple and robust CryoSat-2 radar freeboard correction method dedicated to TFMRA50 for the Arctic winter snow depth and sea ice thickness retrieval .

Hoyeon Shi, Guisella Gacitúa, Jacob L. Høyer, Sten Schmidl Søbjærg, Sotirios Skarpalezos, Ioanna Karagali, Emy Alerskans, Craig Donlon (2024). Shipborne Comparison of Infrared and Passive Microwave Radiometers for Sea Surface Temperature Observations .

Hoyeon Shi, Tore Wulf, Jørgen Buus-Hinkler, Suman Singha, Matilde Brandt Kreiner (2024). Pan-Arctic Sea Ice Concentration from SAR and Passive Microwave .

JOURNAL ARTICLE

Hoyeon Shi, Rasmus Tonboe (2025). Refraction Considered Radar Equation for Snow-Covered Sea Ice Surface . IEEE Geoscience and Remote Sensing Letters.

Hoyeon Shi, Guisella Gacitúa, Jacob Lorentsen Høyer, Sten Schmidl Søbjærg, Sotirios Skarpalezos, Ioanna Karagali, Emy Alerskans, Craig Donlon (2024). Shipborne comparison of infrared and passive microwave radiometers for sea surface temperature observations . Geoscientific Instrumentation, Methods and Data Systems.

Hoyeon Shi, Tore Wulf, Jørgen Buus-Hinkler, Suman Singha, Matilde Brandt Kreiner (2024). Pan-Arctic sea ice concentration from SAR and passive microwave . The Cryosphere.

Rasmus Tonboe, Sang‐Moo Lee, Gorm Dybkjær, Byung‐Ju Sohn, Suman Singha, Fabrizio Baordo, Hoyeon Shi (2024). A Simple and Robust CryoSat‐2 Radar Freeboard Correction Method Dedicated to TFMRA50 for the Arctic Winter Snow Depth and Sea Ice Thickness Retrieval . Earth and Space Science.

Hoyeon Shi, Jong-Min Kim, Sang-Woo Kim, Byung-Ju Sohn, Hyun-Cheol Kim, Sang-Moo Lee, Young-Joo Kwon, Andrey V. Pnyushkov(2023). Estimation of summer pan-Arctic ice draft from satellite passive microwave observations . Remote Sensing of Environment. 295. p. 113662. Elsevier {BV}

Hoyeon Shi, Sang-Moo Lee, Byung-Ju Sohn, Albin J. Gasiewski, Walter N. Meier, Gorm Dybkjær, Sang-Woo Kim (2023). Estimation of Arctic Winter Snow Depth, Sea Ice Thickness and Bulk Density, and Ice Freeboard by Combining CryoSat-2, AVHRR, and AMSR Measurements . IEEE Transactions on Geoscience and Remote Sensing.

Hoyeon Shi, Sung-Ho Baek, Eui-Jong Kang, Byung-Ju Sohn, Sang-Woo Kim (2023). Development of ANN-Based Algorithm to Estimate Wintertime Sea Ice Temperature Profile Over the Arctic Ocean . IEEE Transactions on Geoscience and Remote Sensing.

Hoyeon Shi, Jong-Min Kim, Byung-Ju Sohn, Sang-Moo Lee, Young-Joo Kwon, Sang-Woo Kim, Hyun-Cheol Kim(2022). The Estimation of the Total Freeboard of Arctic Sea Ice in Winter Using Passive Microwave Satellite Measurements . Journal of Atmospheric and Oceanic Technology. 39. (10). p. 1611--1627. American Meteorological Society

Hoyeon Shi, Sang‐Moo Lee, Byung‐Ju Sohn, Albin J. Gasiewski, Walter N. Meier, Gorm Dybkjær (2021). Winter Snow Depth on Arctic Sea Ice From Satellite Radiometer Measurements (2003–2020): Regional Patterns and Trends . Geophysical Research Letters.

Hoyeon Shi, Sang-Moo Lee, Walter N. Meier, Byung-Ju Sohn, Albin J. Gasiewski(2021). Estimation of Arctic Basin-Scale Sea Ice Thickness From Satellite Passive Microwave Measurements . IEEE Transactions on Geoscience and Remote Sensing. 59. (7). p. 5841--5850. Institute of Electrical and Electronics Engineers ({IEEE})

Hoyeon Shi, Byung-Ju Sohn, Gorm Dybkjær, Rasmus Tage Tonboe, Sang-Moo Lee (2020). Simultaneous estimation of wintertime sea ice thickness and snow depth from space-borne freeboard measurements . The Cryosphere.

Sang-Moo Lee and Walter N. Meier and Byung-Ju Sohn and Hoyeon Shi and Albin J. Gasiewski(2020). Estimation of Arctic Basin-Scale Sea Ice Thickness From Satellite Passive Microwave Measurements . IEEE Transactions on Geoscience and Remote Sensing. p. 1--10. Institute of Electrical and Electronics Engineers ({IEEE})

Hoyeon Shi, Sang-Moo Lee, Byung-Ju Sohn(2018). Impact of Ice Surface and Volume Scatterings on the Microwave Sea Ice Apparent Emissivity . Journal of Geophysical Research: Atmospheres. 123. (17). p. 9220--9237. American Geophysical Union ({AGU})

Hoyeon Shi, Sang-Sam Lee, Hyuong-Wook Chun, Hwan-Jin Song, Young-Chan Noh, Byung-Ju Sohn(2016). Optical Properties of Aerosols Related to Haze Events over Seoul Inferred from Skyradiometer and Satellite-Borne Measurements . Atmosphere. 26. (2). p. 289--299. Korean Meteorological Society