Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model
Supported by a National Science Foundation Graduate Fellowship. Supported by the National Aeronautics and Space Administration. NAG 5-743
| Main Authors: | , , |
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| Published: |
Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering
2022
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| Online Access: | https://hdl.handle.net/1721.1/143078 |
| _version_ | 1826209776222076928 |
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| author | Brubaker, Kaye L. Entekhabi, Dara Eagleson, Peter S. |
| author_facet | Brubaker, Kaye L. Entekhabi, Dara Eagleson, Peter S. |
| author_sort | Brubaker, Kaye L. |
| collection | MIT |
| description | Supported by a National Science Foundation Graduate Fellowship. Supported by the National Aeronautics and Space Administration. NAG 5-743 |
| first_indexed | 2024-09-23T14:29:47Z |
| id | mit-1721.1/143078 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:29:47Z |
| publishDate | 2022 |
| publisher | Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering |
| record_format | dspace |
| spelling | mit-1721.1/1430782022-06-14T03:13:05Z Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model Brubaker, Kaye L. Entekhabi, Dara Eagleson, Peter S. Supported by a National Science Foundation Graduate Fellowship. Supported by the National Aeronautics and Space Administration. NAG 5-743 The advective transport of atmospheric water vapor and its role in global hydrology and the water balance of continental regions are discussed and explored. The data set consists of ten years of global wind and humidity observations interpolated onto a regular grid by objective analysis. Atmospheric water vapor fluxes across the boundaries of selected continental regions are displayed graphically. The water vapor flux data are used to investigate the sources of continental precipitation. The total amount of water that precipitates on large continental regions is supplied by two mechanisms: (1) advection from surrounding areas external to the region and (2) evaporation and transpiration from the land surface within the region. The latter supply mechanism is tantamount to the recycling of precipitation over the continental area. The degree to which regional precipitation is supplied by recycled moisture is a potentially significant climate feedback mechanism and land surface-atmosphere interaction, which may contribute to the persistence and intensification of droughts. A simplified model of the atmospheric moisture over continents and simultaneous estimates of regional precipitation are employed to estimate, for several large continental regions, the fraction of precipitation that is locally derived. In a separate, but related, study estimates of ocean-to-land water vapor transport are used to parameterize an existing simple climate model, containing both land and ocean surfaces, that is intended to mimic the dynamics of continental climates. 2022-06-13T13:14:43Z 2022-06-13T13:14:43Z 1991-07 333 https://hdl.handle.net/1721.1/143078 24244434 551849 R (Massachusetts Institute of Technology. Department of Civil Engineering) ; 91-18. Report (Ralph M. Parsons Laboratory for Water Resources and Hydrodynamics) ; 333. application/pdf Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering |
| spellingShingle | Brubaker, Kaye L. Entekhabi, Dara Eagleson, Peter S. Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model |
| title | Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model |
| title_full | Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model |
| title_fullStr | Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model |
| title_full_unstemmed | Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model |
| title_short | Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model |
| title_sort | atmospheric water vapor transport estimation of continental precipitation recycling and parameterization of a simple climate model |
| url | https://hdl.handle.net/1721.1/143078 |
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