Satellite-based total suspended matter as an indicator of coastal surface blue-carbon distribution: a case study of two bays in Japan
衛星による総浮遊物質を沿岸表層ブルーカーボン分布の指標として：日本2湾の事例研究 (AI 翻訳)
Takeshi Osawa, Narumasa Tsutsumida, Hideyuki Doi
🤖 gxceed AI 要約
日本語
本研究は、日本の相模湾と駿河湾を対象に、GCOM-C衛星データから推定した総浮遊物質（TSM）が沿岸ブルーカーボン分布の代理指標となるかを検証した。TSMは河川河口からの距離と負の相関を示し、海草藻場内では周辺水域より有意に高く、海草由来の有機物や堆積・隔離されうる粒子を反映する可能性が示された。衛星TSMは大規模なブルーカーボン監視に有効なスケーラブルな指標である。
English
This study evaluates satellite-derived total suspended matter (TSM) as a proxy for coastal blue-carbon distribution in Sagami and Suruga Bays, Japan. TSM showed significant negative correlation with distance from river estuaries and was higher within seagrass meadows, suggesting it reflects seagrass-derived organic particles and retained suspended matter. Results support TSM as a scalable indicator for large-scale blue-carbon monitoring.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本ではブルーカーボン生態系の保全が気候変動対策として注目されており、衛星リモートセンシングによる広域モニタリングは、Jブルークレジット制度や沿岸域の炭素隔離評価に貢献できる。本研究は、SSBJやTCFD開示における自然資本・炭素関連情報の裏付けとしても有用である。
In the global GX context
This study contributes to global blue-carbon monitoring by demonstrating a scalable satellite-based method for assessing coastal carbon distribution. It supports international efforts such as the IPCC Wetlands Supplement and blue-carbon credit mechanisms, offering a cost-effective approach for tracking coastal carbon dynamics in data-sparse regions.
👥 読者別の含意
🔬研究者:Provides a novel method for using satellite TSM to estimate blue-carbon distribution, useful for coastal carbon cycle research.
🏢実務担当者:Offers a scalable monitoring tool for blue-carbon projects and potential credit verification.
🏛政策担当者:Supports evidence-based coastal conservation and carbon accounting policies.
📄 Abstract（原文）
Coastal blue-carbon ecosystems, particularly seagrass meadows, play a disproportionate role in global carbon sequestration. However, the spatial distribution of exported particulate organic matter (POM) remains poorly understood at large spatial scales. Satellite remote sensing offers a promising approach for monitoring coastal carbon dynamics, yet most studies have focused on benthic seagrass distribution rather than suspended carbon in the water column. This study evaluated the potential of total suspended matter (TSM) estimated from Global Change Observation Mission-Climate (GCOM-C) observations as a proxy for coastal blue-carbon distribution. Using 250-m gridded data from Sagami Bay and Suruga Bay, Japan, we examined whether TSM reflected POM distribution by testing its relationships with distance from river estuaries and mapped seagrass meadows. TSM showed a significant negative relationship with distance from river estuaries in both bays, consistent with riverine POM inputs. TSM values were also significantly higher within seagrass meadows than in surrounding waters, suggesting that TSM reflects both seagrass-derived organic particles and suspended particles retained within seagrass meadows that may potentially be buried and sequestered. Although TSM integrates both autochthonous and allochthonous material, our results demonstrate that satellite-based TSM provides a feasible, scalable proxy for coastal blue-carbon distribution, supporting future large-scale monitoring and assessment of coastal blue carbon.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.envadv.2026.100747first seen 2026-08-12 04:54:13
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