DOI: 10.1175/JCLI-D-11-00591.1
Scopus记录号: 2-s2.0-84867662086
论文题名: Greenland freshwater runoff. Part I: A runoff routing model for glaciated and nonglaciated landscapes (HydroFlow)
作者: Liston G.E. ; Mernild S.H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 17 起始页码: 5997
结束页码: 6014
语种: 英语
Scopus关键词: Annual runoff
; Arctic
; Atmospheric data
; Catchment size
; Discharge simulations
; Downstream areas
; Flow network
; Freshwater fluxes
; Greenland
; Grid cells
; Hydrographs
; Hydrologic models
; Ice sheet
; Land applications
; Mass balance
; Modeling systems
; Routing model
; Runoff production
; Seasonal variation
; Simulation domain
; Snowmelt
; Southeast Greenland
; Time evolutions
; Catchments
; Computer simulation
; Digital storage
; Glaciers
; Snow
; Water
; Watersheds
; Runoff
; drainage network
; glacial hydrology
; glacier
; hydrological modeling
; ice sheet
; runoff
; watershed
; Ammassalik Island
; Arctic
; Greenland
; Mittivakkat Glacier
英文摘要: A gridded linear-reservoir runoff routing model (HydroFlow) was developed to simulate the linkages between runoff production from land-based snowmelt and icemelt processes and the associated freshwater fluxes to downstream areas and surrounding oceans. HydroFlow was specifically designed to account for glacier, ice sheet, and snow-free and snow-covered land applications. Its performance was verified for a test area in southeast Greenland that contains the Mittivakkat Glacier, the local glacier in Greenland with the longest observed time series of mass-balance and ice-front fluctuations. The time evolution of spatially distributed gridcell runoffs required by HydroFlow were provided by the SnowModel snow-evolution modeling system, driven with observed atmospheric data, for the years 2003 through 2010. The spatial and seasonal variations in HydroFlow hydrographs show substantial correlations when compared with observed discharge coming from the Mittivakkat Glacier area and draining into the adjacent ocean. As part of its discharge simulations, HydroFlow creates a flow network that links the individual grid cells that make up the simulation domain. The collection of networks that drain to the ocean produced a range of runoff values that varied most strongly according to catchment size and percentage and elevational distribution of glacier cover within each individual catchment. For 2003-10, the average annual Mittivakkat Glacier region runoff period was 200±20 days, with a significant increase in annual runoff over the 8-yr study period, both in terms of the number of days (30 days) and in volume (54.9 × 10 6 m 3). © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52274
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, CO, United States; Climate Ice Sheet Ocean and Sea Ice Modeling Group, Los Alamos National Laboratory, Los Alamos, NM, United States
Recommended Citation:
Liston G.E.,Mernild S.H.. Greenland freshwater runoff. Part I: A runoff routing model for glaciated and nonglaciated landscapes (HydroFlow)[J]. Journal of Climate,2012-01-01,25(17)