Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Project Goals and Experimental Design

TitleAtmospheric River Tracking Method Intercomparison Project (ARTMIP): Project Goals and Experimental Design
Publication TypeJournal Article
Year of Publication2018
AuthorsShields, Christine A., Rutz Jonathan J., Leung Lai-Yung, F. Ralph Martin, Wehner Michael, Kawzenuk Brian, Lora Juan M., McClenny Elizabeth, Osborne Tashiana, Payne Ashley E., Ullrich Paul, Gershunov Alexander, Goldenson Naomi, Guan Bin, Qian Yun, Ramos Alexandre M., Sarangi Chandan, Sellars Scott, Gorodetskaya Irina, Kashinath Karthik, Kurlin Vitaliy, Mahoney Kelly, Muszynski Grzegorz, Pierce Roger, Subramanian Aneesh C., Tome Ricardo, Waliser Duane, Walton Daniel, Wick Gary, Wilson Anna, Lavers David, Collow Allison, Krishnan Harinarayan, Magnusdottir Gudrun, and Nguyen Phu
JournalGeoscientific Model Development Discussions
Pages1-55
Date Published04/2018
Abstract / Summary

The Atmospheric River Tracking Method Intercomparison Project (ARTMIP) is an international collaborative effort to understand and quantify the uncertainties in atmospheric river (AR) science based on detection algorithm alone. Currently, there are many AR identification and tracking algorithms in the literature with a wide range of techniques and conclusions. ARTMIP strives to provide the community with information on different methodologies and provide guidance on the most appropriate algorithm for a given science question or region of interest. All ARTMIP participants will implement their detection algorithms on a specified common dataset for a defined period of time. The project is divided into two phases: Tier 1 will utilize the MERRA-2 reanalysis from January 1980 to June of 2017 and will be used as a baseline for all subsequent comparisons. Participation in Tier 1 is required. Tier 2 will be optional and include sensitivity studies designed around specific science questions, such as reanalysis uncertainty and climate change. High-resolution reanalysis and/or model output will be used wherever possible. Proposed metrics include AR frequency, duration, intensity, and precipitation attributable to ARs. Here we present the ARTMIP experimental design, timeline, project requirements, and a brief description of the variety of methodologies in the current literature. We also present results from our 1-month proof of concept trial run designed to illustrate the utility and feasibility of the ARTMIP project.

URLhttp://dx.doi.org/10.5194/gmd-2017-295
DOI10.5194/gmd-2017-295
Journal: Geoscientific Model Development Discussions
Year of Publication: 2018
Pages: 1-55
Date Published: 04/2018

The Atmospheric River Tracking Method Intercomparison Project (ARTMIP) is an international collaborative effort to understand and quantify the uncertainties in atmospheric river (AR) science based on detection algorithm alone. Currently, there are many AR identification and tracking algorithms in the literature with a wide range of techniques and conclusions. ARTMIP strives to provide the community with information on different methodologies and provide guidance on the most appropriate algorithm for a given science question or region of interest. All ARTMIP participants will implement their detection algorithms on a specified common dataset for a defined period of time. The project is divided into two phases: Tier 1 will utilize the MERRA-2 reanalysis from January 1980 to June of 2017 and will be used as a baseline for all subsequent comparisons. Participation in Tier 1 is required. Tier 2 will be optional and include sensitivity studies designed around specific science questions, such as reanalysis uncertainty and climate change. High-resolution reanalysis and/or model output will be used wherever possible. Proposed metrics include AR frequency, duration, intensity, and precipitation attributable to ARs. Here we present the ARTMIP experimental design, timeline, project requirements, and a brief description of the variety of methodologies in the current literature. We also present results from our 1-month proof of concept trial run designed to illustrate the utility and feasibility of the ARTMIP project.

DOI: 10.5194/gmd-2017-295
Citation:
Shields, C, J Rutz, L Leung, F Ralph, M Wehner, B Kawzenuk, J Lora, et al.  2018.  "Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Project Goals and Experimental Design."  Geoscientific Model Development Discussions 1-55.  https://doi.org/10.5194/gmd-2017-295.