Research Publications

  1. Title: A Multimodal and Meta‑Learning Approach for Improved Estimation of 3D Vegetation Structure from Satellite Imagery
    Authors: Sharma, R.C.
    Journal: Applied Geomatics (Published online 7 Mar 2025)
    DOI: 10.1007/s12518-025-00619-5
    Publication Date: 2025
  2. Title: Land Cover Classification for Siberia Leveraging Diverse Global Land Cover Datasets
    Authors: Beak, M.; Ichii, K.; Yamamoto, Y.; Wang, R.; Zhang, B.; Sharma, R.C.; Hiyama, T.
    Journal: Progress in Earth and Planetary Science 12(1), 3
    DOI: 10.1186/s40645-024-00672-5
    Publication Date: 2025
  3. Title: Estimation and Evaluation of Land Surface Reflectance from a Next‑Generation Geostationary Meteorological Satellite, Himawari‑8/9 AHI
    Authors: Li, W.; Ichii, K.; Zhang, B.; Yamamoto, Y.; Yang, W.; Miura, T.; Yoshioka, H; Sharma, R.C.; et al.
    Journal: Journal of the Meteorological Society of Japan, Series II 103(1), 87–109
    DOI: 10.2151/jmsj.2025-005
    Publication Date: 2025
  4. Title: Evaluation of Himawari‑8/AHI Land Surface Reflectance at Mid‑Latitudes Using LEO Sensors with Off‑Nadir Observation
    Authors: Zhang, B.; Ichii, K.; Li, W.; Yamamoto, Y.; Yang, W.; Sharma, R.C.; Yoshioka, H; et al.
    Journal: Remote Sensing of Environment 316, 114491
    DOI: 10.1016/j.rse.2024.114491
    Publication Date: 2025
  5. Title: Estimating LAI/FPAR Using Hyper-Temporal Observations by Himawari-8 AHI
    Authors: Sharma, R.C.; Hasimoto, T.; Yamamoto, Y.; Yang, W.; Li, W.; Zhang, B.; Ichii, K.
    Journal: AGU Fall Meeting Abstracts 2023 (2689), B43J-2689
    Publication Date: 2023
  6. Title: Monitoring Seasonal Variations in Terrestrial Gross Primary Productivity Across Southeast Asia Using Himawari-8 Geostationary Satellite Data
    Authors: Ichii, K.; Yamamoto, Y.; Li, W.; Zhang, B.; Sharma, R.C.; Miura, T.
    Journal: AGU Fall Meeting Abstracts 2023, B11D-08
    Publication Date: 2023
  7. Title: Improving Land Surface Reflectance Evaluation Through BRDF Information Retrieval from Himawari-8/AHI
    Authors: Li, W.; Ichii, K.; Zhang, B.; Yamamoto, Y.; Yang, W.; Sharma, R.C.; Yoshioka, H.; et al.
    Journal: AGU Fall Meeting Abstracts 2023 (2693), B43J-2693
    Publication Date: 2023
  8. Title: Dominant Species‑Physiognomy‑Ecological (DSPE) System for the Classification of Plant Ecological Communities from Remote Sensing Images
    Authors: Sharma, R.C.
    Journal: Ecologies 3(3), 323–335
    DOI: 10.3390/ECOLOGIES3030025
    Publication Date: 2022
  9. Title: Countrywide Mapping of Plant Ecological Communities with 101 Legends Including Land Cover Types for the First Time at 10 m Resolution Through Convolutional Learning of Satellite Images
    Authors: Sharma, R.C.
    Journal: Applied Sciences 12(14), 7125
    DOI: 10.3390/APP12147125
    Publication Date: 2022
  10. Title: An Ultra‑Resolution Features Extraction Suite for Community‑Level Vegetation Differentiation and Mapping at a Sub‑Meter Resolution
    Authors: Sharma, R.C.
    Journal: Remote Sensing 14(13), 3145
    DOI: 10.3390/RS14133145
    Publication Date: 2022
  11. Title: Genus‑Physiognomy‑Ecosystem (GPE) System for Satellite‑Based Classification of Plant Communities
    Authors: Sharma, R.C.
    Journal: Ecologies 2(2), 203–213
    DOI: 10.3390/ECOLOGIES2020012
    Publication Date: 2021
  12. Title: Self‑Supervised Learning of Satellite‑Derived Vegetation Indices for Clustering and Visualization of Vegetation Types
    Authors: Sharma, R.C.; Keitarou Hara
    Journal: Journal of Imaging 7(2), 30
    DOI: 10.3390/JIMAGING7020030
    Publication Date: 2021
  13. Title: Vegetation Structure Index (VSI): Retrieving Vegetation Structural Information from Multi‑Angular Satellite Remote Sensing
    Authors: Sharma, R.C.
    Journal: Journal of Imaging 7(5), 84
    DOI: 10.3390/JIMAGING7050084
    Publication Date: 2021
  14. Title: Effectiveness of Sentinel‑1‑2 Multi‑Temporal Composite Images for Land‑Cover Monitoring in the Indochinese Peninsula
    Authors: Hoan, N.T.; Sharma, R.C.; Van Dung, N.; Tung, D.X.
    Journal: Journal of Geoscience and Environment Protection 8(09), 24
    DOI: 10.4236/gep.2020.89002
    Publication Date: 2020
  15. Title: Spectral Features for the Detection of Land Cover Changes
    Authors: Sharma, R.C.; Nguyen, H.T.; Gharechelou, S.; Bai, X.; Nguyen, L.V.; Tateishi, R.
    Journal: Journal of Geoscience and Environment Protection 7(05), 81
    DOI: 10.4236/gep.2019.75009
    Publication Date: 2019
  16. Title: Evaluating Multiple Classifier System for the Reduction of Salt‑and‑Pepper Noise in the Classification of Very‑High‑Resolution Satellite Images
    Authors: Hirayama, H.; Sharma, R.C.; Tomita, M.; Hara, K.
    Journal: International Journal of Remote Sensing 40(7), 2542–2557
    DOI: 10.1080/01431161.2018.1528400
    Publication Date: 2019
  17. Title: Assessing the Effects of Land‑Use Types in Surface Urban Heat Islands for Developing Comfortable Living in Hanoi City
    Authors: Nguyen Thanh Hoan; Yuei‑An Liou; Kim‑Anh Nguyen; Sharma, R.C.; Duy‑Phien Tran; Chia‑Ling Liou; Dao Dinh Cham
    Journal: Remote Sensing, Dec 2018
    DOI: 10.3390/RS10121965
    Publication Date: 2018
  18. Title: Characterization of Vegetation Physiognomic Types Using Bidirectional Reflectance Data
    Authors: Sharma, R.C.; Keitarou Hara
    Journal: Geosciences 8(11), 394
    DOI: 10.3390/GEOSCIENCES8110394
    Publication Date: 2018
  19. Title: Developing Forest Cover Composites Through a Combination of Landsat‑8 Optical and Sentinel‑1 SAR Data for the Visualization and Extraction of Forested Areas
    Authors: Sharma, R.C.; Keitarou Hara; Tateishi, R.
    Journal: Journal of Imaging 4(9), 105
    DOI: 10.3390/JIMAGING4090105
    Publication Date: 2018
  20. Title: A Detailed and High‑Resolution Land Use and Land Cover Change Analysis over the Past 16 Years in the Horqin Sandy Land, Inner Mongolia
    Authors: Bai, X.; Sharma, R.C.; Tateishi, R.; Kondoh, A.; Wuliangha, B.; Tana, G.
    Journal: Mathematical Problems in Engineering (2017), Article ID 1316505
    DOI: 10.1155/2017/1316505
    Publication Date: 2017
  21. Title: A Machine Learning and Cross‑Validation Approach for the Discrimination of Vegetation Physiognomic Types Using Satellite Based Multispectral and Multitemporal Data
    Authors: Sharma, R.C.; Keitarou Hara; Hirayama, H.
    Journal: Scientifica 2017(1), 9806479
    DOI: 10.1155/2017/9806479
    Publication Date: 2017
  22. Title: Earthquake Damage Visualization (EDV) Technique for the Rapid Detection of Earthquake‑Induced Damages Using SAR Data
    Authors: Sharma, R.C.; Tateishi, R.; Hara, K.; Nguyen, H.T.; Gharechelou, S.; Nguyen, L.V.
    Journal: Sensors 17(2), 235
    DOI: 10.3390/S17020235
    Publication Date: 2017
  23. Title: High‑Resolution Vegetation Mapping in Japan by Combining Sentinel‑2 and Landsat 8 Based Multi‑Temporal Datasets Through Machine Learning and Cross‑Validation Approach
    Authors: Sharma, R.C.; Hara, K.; Tateishi, R.
    Journal: Land 6(3), 50
    DOI: 10.3390/LAND6030050
    Publication Date: 2017
  24. Title: A Biophysical Image Compositing Technique for the Global‑Scale Extraction and Mapping of Barren Lands
    Authors: Sharma, R.C.; Tateishi, R.; Hara, K.
    Journal: ISPRS International Journal of Geo‑Information 5(12), 225
    DOI: 10.3390/IJGI5120225
    Publication Date: 2016
  25. Title: Global Mapping of Urban Built‑Up Areas of Year 2014 by Combining MODIS Multispectral Data with VIIRS Nighttime Light Data
    Authors: Sharma, R.C.; Tateishi, R.; Hara, K.; Gharechelou, S.; Iizuka, K.
    Journal: International Journal of Digital Earth 9(10), 1004–1020
    DOI: 10.1080/17538947.2016.1168879
    Publication Date: 2016
  26. Title: Mapping Tropical Forest Biomass by Combining ALOS‑2, Landsat 8, and Field Plots Data
    Authors: Nguyen, L.V.; Tateishi, R.; Kondoh, A.; Sharma, R.C.; et al.
    Journal: Land 5(4), 31
    DOI: 10.3390/LAND5040031
    Publication Date: 2016
  27. Title: Production of the Japan 30‑m Land Cover Map of 2013–2015 Using a Random Forests‑Based Feature Optimization Approach
    Authors: Sharma, R.C.; Tateishi, R.; Hara, K.; Iizuka, K.
    Journal: Remote Sensing 8(5), 429
    DOI: 10.3390/RS8050429
    Publication Date:**: 2016
  28. Title: Soil Moisture Mapping in an Arid Area Using a Land Unit Area (LUA) Sampling Approach and Geostatistical Interpolation Techniques
    Authors: Gharechelou, S.; Tateishi, R.; Sharma, R.C.; Johnson, B.A.
    Journal: ISPRS International Journal of Geo‑Information 5(3), 35
    DOI: 10.3390/ijgi5030035
    Publication Date: 2016
  29. Title: Developing Superfine Water Index (SWI) for Global Water Cover Mapping Using MODIS Data
    Authors: Sharma, R.C.; Tateishi, R.; Hara, K.; Nguyen, L.V.
    Journal: Remote Sensing 7(10), 13807–13841
    DOI: 10.3390/RS71013807
    Publication Date: 2015
  30. Title: Automated Extraction of Canopy Shadow Fraction Using Unmanned Helicopter‑Based Color Vegetation Indices
    Authors: Sharma, R.C.; Kajiwara, K.; Honda, Y.
    Journal: Trees – Structure and Function 27(3), 675–684
    DOI: 10.1007/S00468-012-0822-4
    Publication Date: 2013
  31. Title: Estimation of Forest Canopy Structural Parameters Using Kernel‑Driven Bi‑Directional Reflectance Model Based Multi‑Angular Vegetation Indices
    Authors: Sharma, R.C.; Kajiwara, K.; Honda, Y.
    Journal: ISPRS Journal of Photogrammetry and Remote Sensing 78, 50–57
    DOI: 10.1016/J.ISPRSJPRS.2012.12.006
    Publication Date: 2013
  32. Title: Land Validation for GCOM‑C1/SGLI Using UAV
    Authors: Honda, Y.; Kajiwara, K.; Sharma, R.; Ono, A.; Imaoka, K.; Murakami, H.; Hori, M.; Ono, Y.; Rostand, D.
    Journal: Proceedings of SPIE – The International Society for Optical Engineering
    DOI: 10.1117/12.975802
    Publication Date: 2012
  33. Title: Overview of GCOM‑C1/SGLI Science
    Authors: Honda, Y.; Kajiwara, K.; Sharma, R.; Ono, A.; Imaoka, K.; Murakami, H.; Hori, M.; Ono, Y.; Rostand, D.
    Journal: Proceedings of SPIE – The International Society for Optical Engineering
    DOI: 10.1117/12.977772
    Publication Date: 2012
  34. Title: TOWARDS THE IMPROVEMENT ON A SATELLITE BASED MODELING OF GROSS PRIMARY PRODUCTION AT TEMPERATE HUMID FOREST
    Authors: Sharma, R.C.; Kajiwara, K.; Honda, Y.
    Journal: XXIII ISPRS Congress, Commission I
    Publication Date: 2010