Proof-of-concept of regional scale hydrologic simulations at hydrologic resolution utilizing massively parallel computer resources
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| Title: | Main Title: Proof-of-concept of regional scale hydrologic simulations at hydrologic resolution utilizing massively parallel computer resources |
| Description: | Abstract: We present the results of a unique, parallel scaling study using a 3‐D variably saturated flow problem including land surface processes that ranges from a single processor to a maximum number of 16,384 processors. In the applied finite difference framework and for a fixed problem size per processor, this results in a maximum number of approximately 8 × 109 grid cells (unknowns). Detailed timing information shows that the applied simulation platform ParFlow exhibits excellent parallel efficiency. This study demonstrates that regional scale hydrologic simulations on the order of 103 km2 are feasible at hydrologic resolution (∼100–101 m laterally, 10−2–10−1 m vertically) with reasonable computation times, which has been previously assumed to be an intractable computational problem. |
| Identifier: | 10.1029/2009WR008730 (DOI) |
Responsible Party
| Creators: | Stefan Kollet (Author), Reed M. Maxwell (Author), Carol S. Woodward (Author), Steve Smith (Author), Jan Vanderborght (Author), Harry Vereecken (Author), Clemens Simmer (Author) |
| Publisher: | American Geophysical Union |
| Publication Year: | 2013 |
Topic
| TR32 Topic: | Other |
| Related Subproject: | D7 |
| Subjects: | Keywords: Hydrological Modelling, Numerical Simulation |
File Details
| Filename: | 2010_Kollet_WaterResourRes.pdf |
| Data Type: | Text - Article |
| Size: | 7 Pages |
| File Size: | 582 KB |
| Dates: | Accepted: 15.02.2010 Issued: 20.04.2010 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | For internal use only |
| Access Limitations: | For internal use only |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Water Ressorces Research |
| Volume: | 46 |
| Number of Pages: | 7 (1 - 7) |
Metadata Details
| Metadata Creator: | Stefan Kollet |
| Metadata Created: | 03.12.2013 |
| Metadata Last Updated: | 03.12.2013 |
| Subproject: | D7 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 856 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 3 |
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