秋津 朋子
Akitsu, Tomoko
国立研究開発法人宇宙航空研究開発機構 , 地球観測研究センター , 主任研究開発員 Japan Aerospace Exploration Agency , Earth Observation Research Center , Associate Senior Researcher
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1.
Across-crown and canopy variations of plant functional traits and spectra for deciduous broadleaf and evergreen coniferous species in a temperate forest
Roxanne Lai; Tatsuro Nakaji; Tomoko Kawaguchi Akitsu; Fujio Hyodo (+1 著者) Hideki Kobayashi
(2025)
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2.
The GCOM-C/SGLI vegetation indices (NDVI, PRI, Chlorophyll Index) from the viewpoint of leaf optical property
Tomoko Akitsu; Hiroshi Murakami; Atsushi Kume; Hideki KobayashiRoxanne Lai
(2025)
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3.
Variation in leaf mesophyll anatomy of fern species imposes significant effects on leaf gas exchange, light capture, and leaf hydraulic conductance
S. FUJII; K. NISHIDA; T.K. AKITSU; A. KUMEY.T. HANBA
Photosynthetica (2023) Semantic Scholar
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4.
Leaf optical properties and photosynthesis of fern species with a wide range of divergence time in relation to mesophyll anatomy.
Yuko T Hanba; Keisuke Nishida; Yuuri Tsutsui; Mayu Matsumoto (+4 著者) Atsushi Kume
Annals of botany 131: 437 (2023) Semantic Scholar
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5.
Feature-based algorithm for large-scale rice phenology detection based on satellite images
Xin Zhao; Kazuya Nishina; Tomoko Kawaguchi Akitsu; Liguang Jiang (+1 著者) Kenlo Nishida Nasahara
AGRICULTURAL AND FOREST METEOROLOGY 329: (2023) Semantic Scholar
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6.
Contributions of the understory and midstory to total canopy solar-induced chlorophyll fluorescence in a ground-based study in conjunction with seasonal gross primary productivity in a cool-temperate deciduous broadleaf forest
Tomoki Morozumi; Tomomichi Kato; Hideki Kobayashi; Yuma Sakai (+6 著者) Hiroyuki Muraoka
Remote Sensing of Environment 284: 113340 (2023) Semantic Scholar
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7.
Accuracy Assessment of Photochemical Reflectance Index (PRI) and Chlorophyll Carotenoid Index (CCI) Derived from GCOM-C/SGLI with In Situ Data
Taiga Sasagawa; Tomoko Kawaguchi Akitsu; Reiko Ide; Kentaro Takagi (+2 著者) Kenlo Nishida Nasahara
Remote Sensing 14: 5352 (2022) Semantic Scholar
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8.
Early validation study of the photochemical reflectance index (PRI) and the normalized difference vegetation index (NDVI) derived from the GCOM-C satellite in Mongolian grasslands
Undrakh Bayarsaikhan; Tomoko Kawaguchi Akitsu; Kaoru Tachiiri; Taiga Sasagawa (+2 著者) Kenlo Nishida Nasahara
International Journal of Remote Sensing 43: 5145 (2022) Semantic Scholar
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9.
The variability and seasonality in the ratio of photosynthetically active radiation to solar radiation: A simple empirical model of the ratio
Tomoko Kawaguchi Akitsu; Kenlo Nishida Nasahara; Osamu Ijima; Yasuo Hirose (+2 著者) Atsushi Kume
International Journal of Applied Earth Observation and Geoinformation 108: 102724 (2022) Semantic Scholar
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10.
In-situ observations on a moderate resolution scale for validation of the Global Change Observation Mission-Climate ecological products: The uncertainty quantification in ecological reference data
Tomoko Kawaguchi Akitsu; Kenlo Nishida Nasahara
International Journal of Applied Earth Observation and Geoinformation 107: 102639 (2022) Semantic Scholar
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11.
Area-ratio Fraunhofer line depth (aFLD) method approach to estimate solar-induced chlorophyll fluorescence in low spectral resolution spectra in a cool-temperate deciduous broadleaf forest
Naohisa Nakashima; Tomomichi Kato; Tomoki Morozumi; Katsuto Tsujimoto (+4 著者) Hibiki M. Noda
Journal of Plant Research (2021) Semantic Scholar
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12.
スギ林内における全方位カメラ画像と点群情報の相互変換手法の開発
笹川大河; 秋津朋子; 奈佐原顕郎
Japanese Journal of Forest Planning 54: 105 (2021) Semantic Scholar
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13.
Large‐scale ecological field data for satellite validation in deciduous forests and grasslands
Tomoko Kawaguchi Akitsu; Tatsuro Nakaji; Hajime Kobayashi; Tetsuo Okano (+17 著者) Kenlo Nishida Nasahara
Ecological Research 35: 1009 (2020) Semantic Scholar
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14.
Field data for satellite validation and forest structure modeling in a pure and sparse forest of Picea glehnii in northern Hokkaido
Tomoko K. Akitsu; Tatsuro Nakaji; Toshiya Yoshida; Rei Sakai (+5 著者) Kenlo N. Nasahara
Ecological Research 35: 750 (2020) Semantic Scholar
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15.
Importance of the Collection of Abundant Ground‐Truth Data for Accurate Detection of Spatial and Temporal Variability of Vegetation by Satellite Remote Sensing
Shin Nagai; Kenlo Nishida Nasahara; Tomoko Kawaguchi Akitsu; Taku M. SaitohHiroyuki Muraoka
Biogeochemical Cycles 223 (2020) Semantic Scholar
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16.
Evaluating land surface phenology from the Advanced Himawari Imager using observations from MODIS and the Phenological Eyes Network
Yan D; Zhang X; Nagai S; Yu Y (+3 著者) Maeda T
International Journal of Applied Earth Observations and Geoinformation 79: 71 (2019) Semantic Scholar
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17.
Validating GCOM-C Terrestrial Ecology Products: How Should In-Situ Observation Be Performed at Satellite Scale?
Tomoko Akitsu; Koji Kajiwara; Kaoru Tachiiri; Hideki Kobayashi (+9 著者) Yoshiaki Honda
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium 9196 (2019) Semantic Scholar
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18.
Correction to: Why is chlorophyll b only used in light-harvesting systems? (Journal of Plant Research, (2018), 131, 6, (961-972), 10.1007/s10265-018-1052-7)
Atsushi Kume; Tomoko Akitsu; Kenlo Nishida Nasahara
Journal of Plant Research 132: 457 (2019) Semantic Scholar
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19.
Why is chlorophyll b only used in light-harvesting systems?
Atsushi Kume; Tomoko Kawaguchi Akitsu; Nasahara Kenlo Nishida
Journal of Plant Research (2018) Semantic Scholar
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20.
8 million phenological and sky images from 29 ecosystems from the Arctic to the tropics: the Phenological Eyes Network
Shin Nagai; Tomoko Akitsu; Taku M. Saitoh; Robert C. Busey (+51 著者) Kenlo Nishida Nasahara
Ecological Research 33: 1 (2018) Semantic Scholar
書籍等出版物情報はまだありません。
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41.
高密度森林域における衛星積雪分布の精度評価手法の検討 -十勝三股樹海における試験観測-
堀雅裕; 小林利行; 栗原幸雄; 谷川朋範; 礒道みなと; 秋津朋子; 奈佐原顕郎; 杉浦幸之助; 青木輝夫
雪氷研究大会 2017年9月
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42.
Directional partitioning of vertical Solar-Induced Fluorescence emissions for estimating ecosystem photosynthesis in a deciduous broad-leaf forest in Japan
AsiaFlux WS 2017年8月17日
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43.
Analysis of the relationship between the GPP and SIF from remote sensing data using theoretical model
JpGU-AGU Joint Meeting 2017 2017年5月25日
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44.
Multi-layer measurement of upward and downward solar-induced chlorophyll fluorescence in a cool-temperate deciduous broadleaf forest
JpGU-AGU Joint Meeting 2017 2017年5月25日
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45.
Do you still use the constant ratio of PAR to solar radiation for global studies?
JpGU-AGU Joint Meeting 2017 2017年5月25日
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46.
JAXA super sites 500: a large footprint ecological monitoring project for satellite validation
JpGU-AGU Joint Meeting 2017 2017年5月20日
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47.
森林生態リモートセンシング研究のための大規模森林調査プロットの整備
中路達郎; 秋津朋子; 吉田俊也; 日浦勉; 中村誠宏; 柴田英昭; 奈佐原顕郎
第128回日本森林学会 2017年3月
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48.
Ground-based network of Long-term measurement of Sun-Induced Chlorophyll Fluorescence
12th International Workshop on Greenhouse Gas Measurements from Space 2016年6月8日
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49.
真瀬水田における太陽光誘発クロロフィル蛍光を利用した生態系光合成量の代表性
加藤知道; 辻本克斗; 奈佐原-西田顕郎; 秋津朋子; 小野圭介; 宮田明
日本地球惑星科学連合2016年大会 2016年5月
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50.
冷温帯林における光合成機能の鉛直分布とその季節変化
辻本克斗; 川島在悟; 加藤知道; 斎藤琢; 村岡裕由; 秋津朋子; 奈佐原顕郎
日本地球惑星科学連合2016年大会 2016年4月
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51.
野外における分光測定の生態学的な意義
久米 篤; 秋津 朋子; 奈佐原 顕郎
日本生態学会第63回全国大会 2016年3月
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52.
クロロフィル蛍光パラメータによる冷温帯林の光合成機能の解明
辻本克斗; 川島在悟; 加藤知道; 斎藤琢; 村岡裕由; 秋津朋子; 奈佐原顕郎
第63回日本生態学会全国大会 2016年3月
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53.
空の色を測る
久米 篤; 秋津 朋子; 奈佐原 顕郎
第47回種生物学シンポジウム 2015年12月
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54.
Sun-induced chlorophyll fluorescence reveals strong representation of photosynthesis at ecosystem level in rice paddy field in Japan
AGU Fall Meeting 2015 2015年12月
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55.
Estimation of gross primary production and light use efficiency by the tower-based sun-induced fluorescence measurement in the Japanese evergreen coniferous forest
AGU Fall Meeting 2015 2015年12月
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56.
Development of large-scale ecological monitoring sites for satellite validation in natural forests in Hokkaido, Japan
The 23rd CEReS International Symposium 2015年12月
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57.
JAXA super sites 500: large-scale ecological monitoring sites for satellite validation in Japan
2015 IEEE International Geoscience and Remote Sensing Symposium 2015年7月
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58.
地上タワー観測によるクロロフィル蛍光を利用したスギ・ヒノキ植林の光合成機能の季節変化
辻本克斗; 加藤知道; 平野高司; 斎藤琢; 永井信; 秋津朋子; 奈佐原顕郎
日本地球惑星科学連合2015年大会 2015年5月
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59.
生態系タワー観測による太陽光誘発クロロフィル蛍光データベースの構築
加藤知道; 辻本克斗; 奈佐原顕郎; 秋津朋子; 永井信; 小野圭介; 斎藤琢; 村岡裕由; 野田響; 三枝信子; 井手玲子; 高橋善幸
日本地球惑星科学連合2015年大会 2015年5月
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60.
地上タワー観測によるクロロフィル蛍光を利用したスギ・ヒノキ植林の光合成機能の季節変化
辻本克斗; 加藤知道; 平野高司; 斎藤琢; 永井信; 秋津朋子; 奈佐原顕郎
第126回 日本森林学会大会 2015年3月
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