The IAHR-Asia Pacific Division award (hereinafter called the IAHR-APD award) was established by the IAHR Council in its meeting in Moscow of 3rd September 1983, to encourage presentation of results on hydraulic and water resources research at IAHR-APD biennial congresses. To this end biennially two awards can be credited by IAHR-APD to the authors of the two papers judged the most outstanding papers presented at the APD congress.

One award should be for the author of the best paper from the host country and the other one to the author of the best paper from outside the host country. An award may not be made if the papers in one of the categories are judged inadequate.

1. The IAHR-APD award will be made at each biennial IAHR-APD regional congress to the authors of the two papers judged the most outstanding and published or to be published in the congress proceedings.

2. The awardees will be confirmed by the IAHR-APD Executive Committee from the proposal for each award, submitted to the APD Executive Committee by an Award Committee set up by the APD Executive Committee and confirmed by the secretary general. The Award Committee will review the papers submitted for presentation, assess the manner of presentation by the author and will also seek suggestions for nominations of awardees from the participants in the congress. The nominations of awardees from the participants in the congress shall be completed with a clear argumentation (maximum one page) regarding its outstanding quality and why the paper is of such a specific quality that it outweighs the other papers of the considered field. The Award Committee shall submit the nominations to the IAHR-APD secretary before the closing session of the congress.

3. Awards need not be made during any congress in which the IAHR-APD Executive Committee considers none of the nominees to be of sufficiently high quality.

4. The awards will be presented at the closing ceremony and will consist of a plaque, a certificate and a free one year membership of IAHR, when relevant.

2020: "Reynolds Number Effects of Internal Solitary Waves Propagating on a Uniform Slope" by Hai Zhu, Songping Mao, Decai Sun, Lingling Wang, Zhenzhen Yu, Cheng Lin, 22st IAHR-APD Congress, Online

2020: "Uncertainties of Machine Learning in Predicting the Hydrological Responses of Lid Practices" by Yang Yang, Ting Fong May Chui, 22st IAHR-APD Congress, Online

2020: "Effects of Submerged Weir with an Opening on Bed Deformation and Flow Structure under Live-bed Conditions" by Hirotaka Une, Terunori Ohmoto, 22st IAHR-APD Congress, Online

2020: "Variability in Stage-discharge Relationships in River Reach with Bed Evolutions" by Robin K. Biswas, Shinji Egashira, Daisuke Harada, 22st IAHR-APD Congress, Online

2018: “Dominating Factors Influencing Rapid Channel Migration during Floods – A Case Study on Otofuke River” by Tomoko Kyuka and Yasuyuki Shimizu, 21st IAHR- APD Congress, Yogyakarto, Indonesia

2018:“Effect of the Combination of Forest and the Front-Side Moat along a River Where a Tsunami Runs Up” by Yoshiya Igarashi and Norio Tanaka , 21st IAHR- APD Congress, Yogyakarto, Indonesia

2018: “Effect of Climate Change Variables on the Coastal Wind Prediction” by Syamsidik, 21st IAHR- APD Congress, Yogyakarto, Indonesia

2012: “Analysis of dispersion characteristic using tracer test in natural stream” by Il Won Seo, 18th IAHR- APD Congress, Jeju, Korea

2010: “The structure of flows in suspended aquaculture canopies” by David Plew, 17th IAHR-APD Congress, Auckland, New Zealand