11th Workshop of International Precipitation Working Group
15-18 July 2024
Tokyo Institute of Technology
Tokyo, Japan

About the IPWG

The International Precipitation Working Group (IPWG) was established as a permanent Working Group of the Coordination Group for Meteorological Satellites (CGMS) in 2001. The IPWG is co-sponsored by CGMS and the World Meteorological Organization (WMO) and focuses the scientific community on operational and research satellite based quantitative precipitation measurement issues and challenges.


In order to be more responsive to the discussions and sentiments expressed at IPWG-10, the IPWG formed four Working Groups (WGs) and five Focus Groups (FGs).

WG 1: Baseline Surface Precipitation Network
WG 2: Satellite Precipitation
WG 3: Machine Learning
WG 4: CubeSat/SmallSat WG

FG 1: Orographic Precipitation
FG 2: Snowfall
FG 3: Particle Scattering
FG 4: Data Assimilation
FG 5: Land Surface


Objectives of the Workshop

IPWG-11 in Tokyo

The 11th workshop is organized in Tokyo following previous workshops in Madrid (2002), Monterey (2004), Melbourne (2006), Beijing (2008), Hamburg (2010), São José dos Campos (2012), Tsukuba (2014), Bologna (2016), Seoul (2018), and Fort Collins (2022).

The IPWG-11 will be hosted by the Japan Aerospace Exploration Agency (JAXA).

Objectives of the Workshop

  • Review the state of the art of rainfall and snowfall, high-latitude precipitation measurement techniques and discuss remaining challenges
  • Discuss the application of satellite precipitation products for research and operations
  • Recommend future directions to WMO, CGMS, GEWEX, and CEOS.

Workshop Format

  • Plenary and poster sessions will be organized by the IPWG committees based on the submitted contributions.
  • These sessions will be followed ad-hoc meetings of the working groups and the focus groups.
  • In parallel to the workshop, a satellite data training event is planned. The separate training activity will focus on new and emerging satellite technologies, sensors, and precipitation datasets.


Scientific Committee

Takuji Kubota, JAXA, Japan

Christian D. Kummerow, Colorado State University, US

F. Joseph Turk, JPL/Caltech, US

Philippe Chambon, Météo France, France

Viviana Maggioni, George Mason University,US

Will McCarty, NASA HQ, US

Local Organizing Committee

Takuji Kubota, Misako Kachi, EORC/JAXA

Kazumasa Aonashi, Kyoto Univ./JAXA

Kozo Okamoto, Yasutaka Ikuta, MRI/JMA

Shoichi Shige, Kyoto Univ.

Tomoo Ushio, Osaka Univ.

Nobuyuki Utsumi, Tokyo Tech


Program of IPWG-11 will be open around the end of April 2024.

Important dates

Abstract Submission deadline 29-Feb-24
Notification of Acceptance 30-Apr-24
Issue of Program 30-Apr-24
Registration (free) deadline 15-May-24
Workshop dates  15 to 18 July 2024

Abstract Submission

  • Abstracts that deal with current operational and research precipitation estimation techniques, applications to climate and weather, data assimilation, validation, sensor calibration, and future satellite missions are encouraged.
  • The abstract should be in English, approximately one half of an A4 page and provided in electronic form.

Please submit your abstract here.

The deadline for the receipt of abstracts is 29 February 2024.


Please register yourself here.

The deadline for the registration is 15 May 2024.


The IPWG-11 will take place at Tokyo Institute of Technology (Tokyo Tech).

Multi-Purpose Digital Hall, West Bldg. 9 Ookayama Campus, Tokyo Tech.,
2-12-1 Ookayama, Meguro-ku, Tokyo, Japan

Map & Directions at https://www.titech.ac.jp/english/0/maps

Directions from major airports

From Haneda Airport (about 50 minutes) *lines used are for example purposes only

Haneda Airport Terminal 3 Station ("Keikyū Airport Line" ... Continue on the same vehicle ... "Keikyū Main Line")
Shinagawa Station (Transfer to "JR Yamanote Line")
Meguro Station (Transfer to "Tokyu Meguro Line")
Ōokayama Sta.

From Narita Airport (about 90 minutes) *lines used are for example purposes only

Narita Airport Terminal 1 Station ("Skyliner") *Skyliner requires a separate express ticket. More details here
Nippori Station (Transfer to "JR Yamanote Line")
Meguro Station (Transfer to "Tokyu Meguro Line")
Ōokayama Sta.

About Train Ticket Purchases

Prepaid IC cards such as 'Suica' and 'Pasmo' facilitate seamless train travel.
Just tap your IC card at the gate instead of buying a paper ticket.
These cards can be purchased at Haneda and Narita Airports. Check the link below for purchase locations.


For more details about IC cards

When not using IC cards, you can purchase paper tickets at vending machines.
*Purchasing tickets from ticket vending machines at stations can sometimes be challenging as fare information may be displayed only in Japanese at certain stations, and it can get complicated, especially with transfers. Therefore, if possible, we recommend using IC cards.
*When purchasing a ticket from a vending machine, if you are unable to find your destination and the corresponding fare, you can purchase a ticket for the lowest possible price, and pay the difference at a fare adjustment machine at the destination station.

For more details Taking the train and buying Train tickets

Recommended hotel list

Hotels near to the venue

← Drag the table to scroll →

Hotel Name Address Website Closest Station Access to the Venue Price
Toyoko Inn Tokyo Shinagawa Hatanodai-eki Minami-guchi 5-6-5 Hatanodai, Shinagawa-ku, Tokyo 142-0064 https://www.toyoko-inn.com/eng/search/detail/00246/ Hatanodai 12min
(Tokyu Ōimachi Line) 
Hotel Pulitzer Jiyugaoka 2-11-19 Jiyugaoka, Meguro-ku, Tokyo 152-0035 https://www.pulitzerjiyugaoka.com/ Jiyugaoka 13min
(Tokyu Ōimachi Line) 
APA Hotel Shinagawa Togoshi Ekimae 1-15-17 Togoshi, Shinagawa-ku, Tokyo 142-0041 https://www3.apahotel.com/ja/hotel/syutoken/tokyo/shinagawa-togoshi-ekimae/ Togoshi/
(Tokyu Ikegami Line+Ōimachi Line)
HOTEL ABEST MEGURO 2-26-5 Kamiosaki, Shinagawa-ku,  Tokyo 141-0021 https://www.hotelabest-tokyomeguro.com/ Meguro 20min
(Tokyu Meguro Line)
Smart Stay SHIZUKU Shinagawa Oimachi 5-2-8 Higashioi, Shinagawa-ku, Tokyo 140-0011 https://shizuku-hotel.jp/shinagawa-oimachi/# Ōimachi 21min
(Tokyu Ōimachi Line)
Hotel MidIn Meguro-Ekimae 1-2-19 Shimomeguro, Meguro-Ku, Tokyo 153-0064 https://www.midin.jp/meguro/en/ Meguro 21min
(Tokyu Meguro Line)

Hotels relatively near to the venue

← Drag the table to scroll →

Hotel Name Address Website Closest Station Access to the Venue Price
TOKYU STAY Meguro・Yutenji 2-15-7 Yutenji, Meguro-ku, Tokyo  153-0052 https://www.tokyustay.co.jp/e/hotel/YU/ Yutenji 22min
(Tokyu Tōyoko Line+Ōimachi Line)
MEGUROHOLIC HOTEL 1-3-14 Meguro, Meguro-ku,
Tokyo, 153-0063
https://www.holichotel.jp/en/meguro/ Meguro 22min
(Tokyu Meguro Line)
OURS INN HANKYU 1-50-5, Oi, Shinagawa-ku, Tokyo, 140-0014 https://go-oursinn-hankyu.reservation.jp/en Ōimachi 23min
(Tokyu Ōimachi Line)
JR-EAST HOTEL METS GOTANDA 1-26-3 Higashi Gotanda, Shinagawa-ku, Tokyo 141-0022 https://www.hotelmets.jp/en/gotanda/ Gotanda 23min
(Tokyu Ikegami Line+Ōimachi Line)
VIA INN SHINAGAWA OIMACHI 3-1, Oi 4-chome, Shinagawa-ku, Tokyo, 140-0014 https://www.viainn.com/en/oimachi/ Ōimachi 24min
(Tokyu Ōimachi Line)
Toyoko Inn Tokyo Shinagawa Oimachi 1-27-3 Oi, Shinagawa-ku, Tokyo 140-0014 https://www.toyoko-inn.com/eng/search/detail/00146/ Ōimachi 24min
(Tokyu Ōimachi Line)
HOTEL MYSTAYS Gotanda Station
2-6-8 Nishigotanda, Shinagawa-ku, Tokyo 141-0031
https://www.mystays.com/en-us/hotel-mystays-gotanda-station-tokyo/ Gotanda 25min
(Tokyu Ikegami Line+Ōimachi Line)
Mitsui Garden Hotel Gotanda 2-2-6 Higashi-gotanda, Shinagawa-ku, Tokyo, 141-0022 https://www.gardenhotels.co.jp/gotanda/eng/ Gotanda 25min
(Tokyu Ikegami Line+Ōimachi Line)


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