Koyuru Iwanami

2.1k total citations · 1 hit paper
64 papers, 1.6k citations indexed

About

Koyuru Iwanami is a scholar working on Atmospheric Science, Global and Planetary Change and Environmental Engineering. According to data from OpenAlex, Koyuru Iwanami has authored 64 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 57 papers in Atmospheric Science, 30 papers in Global and Planetary Change and 19 papers in Environmental Engineering. Recurrent topics in Koyuru Iwanami's work include Meteorological Phenomena and Simulations (50 papers), Precipitation Measurement and Analysis (40 papers) and Soil Moisture and Remote Sensing (18 papers). Koyuru Iwanami is often cited by papers focused on Meteorological Phenomena and Simulations (50 papers), Precipitation Measurement and Analysis (40 papers) and Soil Moisture and Remote Sensing (18 papers). Koyuru Iwanami collaborates with scholars based in Japan, United States and Australia. Koyuru Iwanami's co-authors include Nobuhiro Takahashi, Tomoo Ushio, Masayuki Maki, V. N. Bringi, Takuji Kubota, Shoichi Shige, V. Chandrasekar, Katsuhiro Nakagawa, Ken‐ichi Okamoto and Yukari N. Takayabu and has published in prestigious journals such as IEEE Transactions on Geoscience and Remote Sensing, Monthly Weather Review and Quarterly Journal of the Royal Meteorological Society.

In The Last Decade

Koyuru Iwanami

57 papers receiving 1.5k citations

Hit Papers

Global Precipitation Map ... 2007 2026 2013 2019 2007 200 400 600
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Global Precipitation Map Using Satellite-Borne Microwave Radiometers by the GSMaP Project: Production and Validation
    2007 678 citations Nobuhiro Takahashi, Tomoo Ushio et al. IEEE Transactions on Geoscience and Remote Sensing profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koyuru Iwanami Japan 14 1.5k 824 497 170 78 64 1.6k
Éric Bazile France 20 1.3k 0.9× 1.1k 1.4× 358 0.7× 111 0.7× 70 0.9× 43 1.5k
P. Mascart France 12 1.3k 0.9× 1.2k 1.5× 322 0.6× 69 0.4× 105 1.3× 17 1.5k
John Kalogiros Greece 21 901 0.6× 717 0.9× 350 0.7× 229 1.3× 117 1.5× 73 1.2k
Ami Arthur United States 10 1.1k 0.7× 890 1.1× 327 0.7× 304 1.8× 32 0.4× 13 1.3k
C. G. Collier United Kingdom 18 1.0k 0.7× 889 1.1× 381 0.8× 368 2.2× 35 0.4× 50 1.4k
Peter Steinle Australia 14 629 0.4× 386 0.5× 395 0.8× 73 0.4× 90 1.2× 43 849
Grzegorz J. Ciach United States 18 1.7k 1.2× 1.1k 1.4× 690 1.4× 427 2.5× 34 0.4× 27 1.9k
Xiangjun Tian China 18 714 0.5× 682 0.8× 287 0.6× 97 0.6× 73 0.9× 63 986
David Kitzmiller United States 12 1.2k 0.8× 786 1.0× 375 0.8× 238 1.4× 33 0.4× 41 1.3k
Humphrey Lean United Kingdom 20 2.4k 1.6× 2.3k 2.8× 405 0.8× 102 0.6× 88 1.1× 52 2.6k

Countries citing papers authored by Koyuru Iwanami

Since Specialization
Citations

This map shows the geographic impact of Koyuru Iwanami'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 Koyuru Iwanami with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koyuru Iwanami more than expected).

Fields of papers citing papers by Koyuru Iwanami

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koyuru Iwanami. 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 Koyuru Iwanami. The network helps show where Koyuru Iwanami may publish in the future.

Co-authorship network of co-authors of Koyuru Iwanami

This figure shows the co-authorship network connecting the top 25 collaborators of Koyuru Iwanami. A scholar is included among the top collaborators of Koyuru Iwanami 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 Koyuru Iwanami. Koyuru Iwanami 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.
Kikuchi, Hiroshi, Tomoo Ushio, Nobuhiro Takahashi, et al.. (2020). Initial Observations for Precipitation Cores With X-Band Dual Polarized Phased Array Weather Radar. IEEE Transactions on Geoscience and Remote Sensing. 58(5). 3657–3666. 26 indexed citations
2.
Maesaka, Takeshi, et al.. (2020). Clear-Air Echoes Observed by Ka-band Polarimetric Cloud Radar: A Case Study on Insect Echoes in the Tokyo Metropolitan Area, Japan. Journal of the Meteorological Society of Japan Ser II. 99(1). 101–112. 3 indexed citations
3.
Misumi, Ryohei, Yutaka Tobo, Kazuhiko Miura, et al.. (2018). Characteristics of Droplet Size Distributions in Low-Level Stratiform Clouds Observed from Tokyo Skytree. Journal of the Meteorological Society of Japan Ser II. 96(4). 405–413. 8 indexed citations
4.
Shimizu, Shingo, et al.. (2016). Impact of Observation Operators on Low-Level Wind Speed Retrieved by Variational Multiple-Doppler Analysis. SOLA. 12(0). 215–219. 4 indexed citations
5.
Iwanami, Koyuru. (2015). Plan of the Field Observation in the Tokyo Metropolitan Area: Lifecycle of Cumulonimbus Experiment (LCbEX). 1 indexed citations
6.
Maki, Masayuki, Shingo Shimizu, Koyuru Iwanami, et al.. (2015). Relationship between Precipitation Core Behavior in Cumulonimbus Clouds and Surface Rainfall Intensity on 18 August 2011 in the Kanto Region, Japan. Journal of the Meteorological Society of Japan Ser II. 93(2). 215–228. 9 indexed citations
7.
Misumi, Ryohei, Shingo Shimizu, Takeshi Maesaka, et al.. (2013). Behavior and Structure of Convective Clouds Developing around a Mountainous Area Observed by Stereo Photogrammetry and Ka-Band and X-Band Radars: Case Study of Northern Kanto, Japan. Journal of the Meteorological Society of Japan Ser II. 91(5). 609–626. 5 indexed citations
8.
Maki, Masayuki, et al.. (2012). Quantitative precipitation estimate by complementary application of X-band polarimetric radar and C-band conventional radar. IAHS-AISH publication. 169–175. 5 indexed citations
9.
Sakurai, Namiko, Koyuru Iwanami, Takeshi Maesaka, et al.. (2012). Case Study of Misoscale Convective Echo Behavior Associated with Cumulonimbus Development Observed by Ka-band Doppler Radar in the Kanto Region, Japan. SOLA. 8(0). 107–110. 12 indexed citations
10.
Yamada, Yoshinori, Masataka Murakami, Hakaru Mizuno, et al.. (2010). Kinematic and Thermodynamical Structures of Longitudinal-Mode Snow Bands over the Sea of Japan during Cold-Air Outbreaks Part I: Snow Bands in Large Vertical Shear Environment in the Band-Transverse Direction. Journal of the Meteorological Society of Japan Ser II. 88(4). 673–718. 11 indexed citations
11.
Suzuki, Shinichi, Takeshi Maesaka, Koyuru Iwanami, et al.. (2010). Multi-Parameter Radar Observation of a Downburst Storm in Tokyo on 12 July 2008. SOLA. 6. 53–56. 6 indexed citations
12.
Maki, Masayuki, et al.. (2004). Rainfall measurement with X-band Multi-Parameter Radar. 한국기상학회 학술대회 논문집. 84–85.
13.
Yamada, Hiroyuki, Hiroshi Uyeda, Katsuhiro Kikuchi, Masayuki Maki, & Koyuru Iwanami. (2004). Dual-Doppler Radar Observations on Factors Causing Differences in the Structure of Snow Clouds during Winter Monsoon Surges. Journal of the Meteorological Society of Japan Ser II. 82(1). 179–206. 5 indexed citations
14.
Murakami, Masataka, Yoshinori Yamada, Takayo Matsuo, et al.. (2003). The Precipitation Process in Convective Cells Embedded in Deep Snow Bands over the Sea of Japan. Journal of the Meteorological Society of Japan Ser II. 81(3). 515–531. 13 indexed citations
15.
Iwanami, Koyuru, Katsuhiro Kikuchi, Hiroshi Uyeda, & Takashi Taniguchi. (1998). Airflow Circulations in the Precipitation Clouds over the Southeastern Slope of the Orofure Mountain Range, Hokkaido, Japan. Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University). 11(1). 185–205.
16.
Takahashi, Nobuhiro, Hiroshi Uyeda, Katsuhiro Kikuchi, & Koyuru Iwanami. (1996). Mesoscale and Convective Scale Features of Heavy Rainfall Events in Late Period of the Baiu Season in July 1988, Nagasaki Prefecture. Journal of the Meteorological Society of Japan Ser II. 74(4). 539–561. 17 indexed citations
17.
Yamada, Yoshinori, Masataka Murakami, Hakaru Mizuno, et al.. (1996). Mesoscale and Microscale Structures of Snow Clouds over the Sea of Japan : Part III: Two Types of Circulations in Snow Bands Associated with a Wind-Speed-Increase Zone Preceding Cold-Air Outbreaks. Journal of the Meteorological Society of Japan Ser II. 74(5). 593–615. 7 indexed citations
18.
Yamada, Yoshinori, Takayo Matsuo, Masataka Murakami, Hakaru Mizuno, & Koyuru Iwanami. (1994). Mesoscale and Microscale Structures of Snow Clouds over the Sea of Japan Part II : Time Change in Airflow Structures in Isolated Snow Clouds Derived from Dual-Doppler Radar Observations A Case Study. Journal of the Meteorological Society of Japan Ser II. 72(5). 695–708. 13 indexed citations
19.
Iwanami, Koyuru, Katsuhiro Kikuchi, & Takashi Taniguchi. (1989). A Case Study of Heavy Rainfalls from the Shallow Orographic Precipitating Clouds in the Orofure Mountain Range, Hokkaido, Japan. Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University). 8(4). 281–299.
20.
Iwanami, Koyuru, Katsuhiro Kikuchi, & Takashi Taniguchi. (1988). A Possible Rainfall Mechanism in the Orofure Mountain Range Hokkaido, Japan. Journal of the Meteorological Society of Japan Ser II. 66(3). 497–504. 9 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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