Ryoichi Imasu

2.4k total citations
81 papers, 1.2k citations indexed

About

Ryoichi Imasu is a scholar working on Global and Planetary Change, Atmospheric Science and Spectroscopy. According to data from OpenAlex, Ryoichi Imasu has authored 81 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Global and Planetary Change, 63 papers in Atmospheric Science and 16 papers in Spectroscopy. Recurrent topics in Ryoichi Imasu's work include Atmospheric and Environmental Gas Dynamics (57 papers), Atmospheric Ozone and Climate (45 papers) and Atmospheric chemistry and aerosols (38 papers). Ryoichi Imasu is often cited by papers focused on Atmospheric and Environmental Gas Dynamics (57 papers), Atmospheric Ozone and Climate (45 papers) and Atmospheric chemistry and aerosols (38 papers). Ryoichi Imasu collaborates with scholars based in Japan, Russia and United States. Ryoichi Imasu's co-authors include Yasunobu Iwasaka, Masahiko Yamato, Akira Ono, Yosuke Niwa, Naoko Saitoh, Masaki Satoh, Y. Ota, Kei Shiomi, Hidekazu Matsueda and Konstantin Gribanov and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Scientific Reports and Geophysical Research Letters.

In The Last Decade

Ryoichi Imasu

76 papers receiving 1.2k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ryoichi Imasu Japan 18 1.0k 997 175 104 93 81 1.2k
Omaira García Spain 18 1.0k 1.0× 975 1.0× 153 0.9× 101 1.0× 72 0.8× 76 1.2k
Andrew M. Crotwell United States 16 1.1k 1.1× 1.2k 1.2× 59 0.3× 122 1.2× 60 0.6× 29 1.4k
Sherwin M. Beck United States 15 943 0.9× 803 0.8× 131 0.7× 46 0.4× 55 0.6× 23 1.1k
R. F. Pueschel United States 25 1.9k 1.9× 1.6k 1.6× 230 1.3× 47 0.5× 110 1.2× 79 2.1k
Sergey Gromov Germany 14 1.1k 1.1× 802 0.8× 293 1.7× 36 0.3× 124 1.3× 36 1.3k
G. W. Sachse United States 27 2.2k 2.1× 1.7k 1.7× 464 2.7× 65 0.6× 141 1.5× 50 2.3k
F. Bruynseels Belgium 13 515 0.5× 339 0.3× 208 1.2× 90 0.9× 62 0.7× 17 739
J. W. Stehr United States 23 1.3k 1.3× 757 0.8× 628 3.6× 61 0.6× 186 2.0× 33 1.5k
Yonghoon Choi United States 20 783 0.8× 738 0.7× 159 0.9× 230 2.2× 77 0.8× 46 1.2k
Laura T. Iraci United States 25 1.3k 1.3× 1.1k 1.1× 286 1.6× 133 1.3× 177 1.9× 81 1.6k

Countries citing papers authored by Ryoichi Imasu

Since Specialization
Citations

This map shows the geographic impact of Ryoichi Imasu's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryoichi Imasu with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryoichi Imasu more than expected).

Fields of papers citing papers by Ryoichi Imasu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryoichi Imasu. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryoichi Imasu. The network helps show where Ryoichi Imasu may publish in the future.

Co-authorship network of co-authors of Ryoichi Imasu

This figure shows the co-authorship network connecting the top 25 collaborators of Ryoichi Imasu. A scholar is included among the top collaborators of Ryoichi Imasu based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryoichi Imasu. Ryoichi Imasu is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Imasu, Ryoichi, Tsuneo Matsunaga, Masakatsu Nakajima, et al.. (2023). Greenhouse gases Observing SATellite 2 (GOSAT-2): mission overview. Progress in Earth and Planetary Science. 10(1). 35 indexed citations
3.
Imasu, Ryoichi, et al.. (2020). Atmospheric ammonia retrieval from the TANSO-FTS/GOSAT thermal infrared sounder. Atmospheric measurement techniques. 13(1). 309–321. 27 indexed citations
4.
Dhaka, S. K., et al.. (2019). Seasonal and annual variation of AIRS retrieved $$\hbox {CO}_{{2}}$$ CO 2 over India during 2003–2011. Journal of Earth System Science. 128(4). 7 indexed citations
5.
Imasu, Ryoichi, et al.. (2019). Estimating PM_{2.5} Emission from Brick Kiln Industry over Northern India with Numerical Model and Remote Sensing Observation. EGUGA. 11915. 1 indexed citations
6.
Matsunaga, Tsuneo, Isamu Morino, Masanori Saito, et al.. (2019). Early Results of GOSAT-2 Level 2 Products. AGU Fall Meeting Abstracts. 2019. 2 indexed citations
7.
Matsumi, Yutaka, Tomoki Nakayama, Kensaku Shimizu, et al.. (2019). Development of a balloon-borne instrument for CO 2 vertical profile observations in the troposphere. Atmospheric measurement techniques. 12(10). 5639–5653. 8 indexed citations
8.
Sato, Tomohiro, Takao M. Sato, Hideo Sagawa, et al.. (2018). Vertical profile of tropospheric ozone derived from synergetic retrieval using three different wavelength ranges, UV, IR, and microwave: sensitivity study for satellite observation. Atmospheric measurement techniques. 11(3). 1653–1668. 8 indexed citations
9.
Imasu, Ryoichi, Аndrey Bril, Tatsuya Yokota, et al.. (2017). Validation of GOSAT SWIR XCO<sub>2</sub> and XCH<sub>4</sub> Retrieved by PPDF-S Method and Comparison with Full Physics Method. SOLA. 13(0). 168–173. 5 indexed citations
10.
Ota, Y. & Ryoichi Imasu. (2016). CO<sub>2</sub> Retrieval Using Thermal Infrared Radiation Observation by Interferometric Monitor for Greenhouse Gases (IMG) Onboard Advanced Earth Observing Satellite (ADEOS). Journal of the Meteorological Society of Japan Ser II. 94(6). 471–490. 6 indexed citations
11.
Saitoh, Naoko, Ryoichi Imasu, S. Kawakami, et al.. (2015). Validation of GOSAT/TANSO-FTS TIR UTLS CO 2 data (Version 1.0) using CONTRAIL measurements. 2 indexed citations
12.
Gribanov, Konstantin, Matthias Schneider, François‐Marie Bréon, et al.. (2014). A posteriori calculation of δ 18 O and δD in atmospheric water vapour from ground-based near-infrared FTIR retrievals of H 2 16 O, H 2 18 O, and HD 16 O. Atmospheric measurement techniques. 7(8). 2567–2580. 17 indexed citations
13.
Ricaud, Philippe, L. El Amraoui, Jean‐Luc Attié, et al.. (2014). Variability of tropospheric methane above the Mediterranean Basin inferred from satellite and model data. 1 indexed citations
14.
Saitoh, Naoko, Sachiko Hayashida, Ryoichi Imasu, et al.. (2012). Comparisons between XCH<sub>4</sub> from GOSAT Shortwave and Thermal Infrared Spectra and Aircraft CH<sub>4</sub> Measurements over Guam. SOLA. 8(0). 145–149. 30 indexed citations
15.
Niwa, Yosuke, Hirofumi Tomita, Masaki Satoh, & Ryoichi Imasu. (2011). A Three-Dimensional Icosahedral Grid Advection Scheme Preserving Monotonicity and Consistency with Continuity for Atmospheric Tracer Transport. Journal of the Meteorological Society of Japan Ser II. 89(3). 255–268. 46 indexed citations
16.
Imasu, Ryoichi. (1997). Phase Correction Procedure for the IMG Interferogram Data and Effects of the Phase Correction Error on the Retrieval Results. National Remote Sensing Bulletin. 17(5). 506–513. 1 indexed citations
17.
Imasu, Ryoichi, et al.. (1995). Radiative Effects and Halocarbon Global Warming Potentials of Replacement Compounds for Chlorofluorocarbons. Journal of the Meteorological Society of Japan Ser II. 73(6). 1123–1136. 40 indexed citations
18.
Imasu, Ryoichi & Yasunobu Iwasaka. (1992). Utilization of the 4m Microwave Telescope for the Measurement of Liquid Water Path in Cirrus Clouds. Journal of the Meteorological Society of Japan Ser II. 70(1). 123–129. 3 indexed citations
19.
Imasu, Ryoichi & Yasunobu Iwasaka. (1991). Characteristics of Cirrus Clouds Observed by Laser Radar (Lidar) during the Spring of 1987 and the Winter of 1987/88. Journal of the Meteorological Society of Japan Ser II. 69(3). 401–411. 6 indexed citations
20.
Imasu, Ryoichi, et al.. (1990). Lidar observations of the clouds with Halo phenomena. 37(10). 689–698. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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