Data Assimilation Trials with Large Scale Observation Data

• Project/Area Number: 26289159
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: University of Tsukuba
• Principal Investigator: ASANUMA Jun 筑波大学, 生命環境系, 教授 (40293261)
• Co-Investigator(Kenkyū-buntansha): 松島 大 千葉工業大学, 創造工学部, 教授 (50250668) ; 馬 文超 筑波大学, アイソトープ環境動態研究センター, 研究員 (60743101) ; 萬 和明 京都大学, 工学研究科, 助教 (90554212)
• Research Collaborator: AIDA Kentaro
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000); Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2014: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
• Keywords: 土壌水分 / 陸面モデル / 陸面同化システム / 粒子フィルター / 地表面熱収支モデル / GCOM-W1 / 地球観測衛星 / 大気陸面相互作用 / 熱慣性 / 表層土壌水分 / 粒子フィルタ / 陸面過程モデルSiBUC / 地表面熱収支 / 地表面水収支 / データ同化 / モンゴル草原

Outline of Final Research Achievements

Soil moisture spatial distribution observed at Mongolian grassland was analyzed to deduct characteristics of spatiotemporal change. It was found that their spatial variance is largely change over time as well as its mean. The findings warn the uncertainties involved with spatial variability.

A two-layered surface soil moisture model was developed and applied to the data observed at Mongolian grassland with the resulted error of 3.8%. Land surface data assimilation with particle smoothing was developed to test its performance with respect to the given conditions to the system, which suggests flexible initial conditions results in better performance.

Research Products

• [Int'l Joint Research] NASA(米国)
• [Int'l Joint Research] 水文環境気象研究所/水文環境気象局(モンゴル)
• [Journal Article] Thermal inertia approach using a heat budget model to estimate the spatial distribution of surface soil moisture over a semiarid grassland in Central Mongolia (2018)
  • Author(s): Dai Matsushima, Jun Asanuma, Ichirow Kaihotsu
  • Journal Title: Journal of Hydrometeorology Volume: 19-1 Issue: 1 Pages: 245-265
  • DOI: 10.1175/jhm-d-17-0040.1
  • Peer Reviewed
• [Journal Article] Estimating surface soil moisture from SMAP observations using a Neural Network technique (2018)
  • Author(s): Kolassa J.、Reichle R.H.、Liu Q.、Alemohammad S.H.、Gentine P.、Aida K.、Asanuma J.、Bircher S.、Caldwell T.、Colliander A.、Cosh M.、Holifield Collins C.、Jackson T.J.、Martinez-Fernandez J.、McNairn H.、Pacheco A.、Thibeault M.、Walker J.P.
  • Journal Title: Remote Sensing of Environment Volume: 204 Pages: 43-59
  • DOI: 10.1016/j.rse.2017.10.045
  • Peer Reviewed
• [Journal Article] GCOM-W AMSR2 soil moisture product validation using core validation sites (2018)
  • Author(s): Bindlish R, Cosh M, Jackson T, Koike T, Fujii H, Chan S, Asanuma J, Berg A, Bosch D, Caldwell T, Collins C, Mcnairn H, Martinez-Fernandez J, Prueger J, Rowlandson T, Seyfried M, Starks P, Thibeault M, Van Der Velde R, Walker J and Coopersmith E
  • Journal Title: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Volume: 11(1) Issue: 1 Pages: 209-219
  • DOI: 10.1109/jstars.2017.2754293
  • Peer Reviewed
• [Journal Article] Development and assessment of the SMAP enhanced passive soil moisture product (2018)
  • Author(s): Chan S.K., Bindlish R., O'Neill P.、Jackson T.、Njoku E.、Dunbar S.、Chaubell J.、Piepmeier J.、Yueh S.、Entekhabi D.、Colliander A.、Chen F.、Cosh M.H.、Caldwell T.、Walker J.、Berg A.、McNairn H.、Thibeault M.、Uldall F.、Seyfried M.、Bosch D.、Starks P.、Holifield Collins C.、Asanuma J.
  • Journal Title: Remote Sensing of Environment Volume: 204 Pages: 931-941
  • DOI: 10.1016/j.rse.2017.08.025
  • Peer Reviewed
• [Journal Article] 土壌組成をパラメータとした熱慣性と土壌水分の関係の変化 (2017)
  • Author(s): 松島 大・浅沼 順・開發一郎
  • Journal Title: 2016土壌水分ワークショップ論文集 Volume: - Pages: 13-17
• [Journal Article] Validation of SMAP surface soil moisture products with core validation sites (2017)
  • Author(s): Colliander A, Jackson T, Bindlish R, Chan S, Das N, Kim S, Cosh M, Dunbar R, Dang L, Pashaian L, Asanuma J, Aida K, Berg A, Rowlandson T, Bosch D, Caldwell T, Caylor K, Goodrich D, al Jassar H, Lopez-Baeza E, Martinez-Fernandez J, Livingston S, McNairn H, Pacheco A, Moghaddam M
  • Journal Title: Remote Sensing of Environment Volume: 191 Pages: 215-231
  • DOI: 10.1016/j.rse.2017.01.021
  • Peer Reviewed
• [Journal Article] AMSR2 Soil Moisture Product Validation (2017)
  • Author(s): R., Bindlish; T., Jackson; M., Cosh; J. Asanuma, et al
  • Journal Title: 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) Volume: 印刷中
• [Journal Article] MAHASRI Activities in Northeast Asia (2016)
  • Author(s): Asanuma, Jun; Yuriko, Koike; Gombo Davaa
  • Journal Title: GEWEX News Volume: 26(4) Pages: 22-23
  • Open Access / Int'l Joint Research
• [Journal Article] Spatial and seasonal variations of CO2 flux, and photosynthetic and respiratory parameters of larch forests in East Asia (2015)
  • Author(s): Takagi K, Hirata R, Ide R, Ueyama M, Ichii K, Saigusa N, Hirano T, Asanuma J, Li S, Machimura T, Nakai Y, Ohta T and Takahashi Y
  • Journal Title: Soil Science and Plant Nutrition Volume: 61 Issue: 1 Pages: 61-75
  • DOI: 10.1080/00380768.2014.990349
  • NAID: 210000011712
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Satellite-Based Analysis of Evapotranspiration and Water Balance in the Grassland Ecosystems of Dryland East Asia (2014)
  • Author(s): Xia J, Liang S, Chen J, Yuan W, Liu S, Li L, Cai W, Zhang L, Fu Y, Zhao T, Asanuma, J., and others
  • Journal Title: PloS one Volume: 9 Issue: 5 Pages: 1-11
  • DOI: 10.1371/journal.pone.0097295
  • Peer Reviewed / Open Access
• [Presentation] AMSR2 Soil Moisture Product Validation (2017)
  • Author(s): 浅沼, 順; R., Bindlish; T., Jackson; M., Cosh; et al
  • Organizer: IGARSS 2017
  • Place of Presentation: Fort Worth, TX, USA
  • Year and Date: 2017-07-23
  • Int'l Joint Research
• [Presentation] Spatio-temporal distribution of surface soil moisture derived from thermal inertia using multi-satellite data over a semi-arid steppe in Central Mongolia (2017)
  • Author(s): Dai Matsushima, Ichirow Kaihotsu, Jun Asanuma
  • Organizer: 14th Anuual Meeting Asia Oceania Geosciences Society
  • Int'l Joint Research
• [Presentation] モンゴル草原における衛星フットプリントスケール土壌水分の時空間変動 (2017)
  • Author(s): 小林 健史; 浅沼 順; 会田 健太郎; 開發 一郎; Davaa Gombo
  • Organizer: 水文・水資源学会研究発表会
• [Presentation] 土壌水分の観測情報を用いた平滑化手法による陸面データ同化 (2017)
  • Author(s): 野田 貴頌; 萬 和明; 立川 康人; 市川 温; 浅沼 順; 開發 一郎
  • Organizer: 水文・水資源学会研究発表会
• [Presentation] 表層土壌熱慣性推定値と土壌水分実測値及びAMSR2土壌水分プロダクトとの比較 (2017)
  • Author(s): 松島 大; 浅沼 順; 開發 一郎
  • Organizer: 水文・水資源学会研究発表会
• [Presentation] 長期観測によるモンゴル草原における衛星フットプリントスケール 土壌水分の時空間変動解析 (2017)
  • Author(s): 小林 健史; 浅沼 順; 開發 一郎; Davva G; Oyunbaatar D
  • Organizer: 水文・水資源学会研究発表会
• [Presentation] 土壌組成をパラメータとした熱慣性と土壌水分の関係の変化 (2016)
  • Author(s): 松島 大・浅沼 順・開發一郎
  • Organizer: 2016土壌水分ワークショップ
  • Place of Presentation: 広島大学東京オフィス（東京都・港区）
  • Year and Date: 2016-12-10
• [Presentation] Hydro4m’ Hydro-Meteorological study with Multi-satellite sensors and Multidimensional approaches at Mongolian Grassland (2015)
  • Author(s): J. Asanuma and K. Aida
  • Organizer: SMAP Cal/Val Workshop
  • Place of Presentation: Columbia Maryland, USA
  • Year and Date: 2015-09-01
  • Int'l Joint Research
• [Presentation] An approach to estimate spatial distribution of surface heat fluxes using satellite data and a heat budget model over a desert steppe (2015)
  • Author(s): Dai Matsushima, Reiji Kimura, Masato Shinoda
  • Organizer: International Symposium on Agricultural Meteorology 2015
  • Place of Presentation: Tsukuba Center for Institutes, Tsukuba
  • Year and Date: 2015-03-18
• [Presentation] Hydrometeorology in Mongolian Grassland (2015)
  • Author(s): Asanuma, J., T. Sato, K. Aida, Y. Koike, K. Kobayashi, M. Saito, G. Davaa, D. Oyunbaatar
  • Organizer: Asian monsoon Hydroclimate -Review of MAHASRI and Beyond-
  • Place of Presentation: Nagoya, Japan
  • Year and Date: 2015-03-04
• [Presentation] Toward upscaling ground-based measurements for validating the AMSR2 soil moisture products (2015)
  • Author(s): Asanuma, J., K. Aida, K. Kobayashi, and H. Fujii,
  • Organizer: Joint PI Meeting of Global Environment Observation Mission 2014
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2015-01-12 – 2015-01-16
• [Presentation] Application of Particle Filter to Land Surface Model Using in Site Soil Moisture Observation in Semi-arid Region (2015)
  • Author(s): Kazuaki Yorozu and Yasuto Tachikawa
  • Organizer: 95th American Meteorological Society Annual Meeting
  • Place of Presentation: Phoenix, USA
  • Year and Date: 2015-01-04 – 2015-01-08
• [Presentation] Estimating Spatial Disturbution of Surface Soil Mositure Conditions Using a Downscale Technique with Thermal Inertia Retrieved from AMSR2 Soil Moisture Products (2014)
  • Author(s): Dai Matsushima, Reiji Kimura
  • Organizer: 2014 Fall Meeting of American Geophysical Union
  • Place of Presentation: Moscone Center, San Francisco, USA
  • Year and Date: 2014-12-17
• [Presentation] A summary of Asian Dryland Model Intercomparison Project (ADMIP) (2014)
  • Author(s): Asanuma, J., Ojima, D., Yorozu, K., Chen, Y., Hosaka, M., Ichii, K., JAMSTEC; Ito, A., Hong, J., Kondo, M., Li, Q., Mabuchi, K., Miyazaki, S., Parton, W., Sato, H., Tachiiri, K., Zhang, X., Xue, Y., Yang, K., Yang, Z-L., Ailikun
  • Organizer: 7th International Scientific Conference on the Global Water and Energy Cycle
  • Place of Presentation: World Forum, The Hague, The Netherlands
  • Year and Date: 2014-07-14 – 2014-07-17
• [Presentation] A summary of Asian Dryland Model Intercomparison Project (ADMIP) (2014)
  • Author(s): Asanuma, J., Ojima, D., Yorozu, K., Chen, Y., Hosaka, M., Ichii, K., JAMSTEC; Ito, A., Hong, J., Kondo, M., Li, Q., Mabuchi, K., Miyazaki, S., Parton, W., Sato, H., Tachiiri, K., Zhang, X., Xue, Y., Yang, K., Yang, Z-L., Ailikun
  • Organizer: MAIRS Open Science Conference
  • Place of Presentation: Friendship Hotel, Beijing, China.
  • Year and Date: 2014-04-07 – 2014-04-10