A NOVEL METHODOLOGY FOR DEVELOPING INUNDATION MAPS UNDER CLIMATE CHANGE SCENARIOS USING ONE-DIMENSIONAL MODEL

2011 ◽  
pp. 53-62
Author(s):  
M. T. VU ◽  
S. Y. LIONG ◽  
V. S. RAGHAVAN ◽  
S. C. LIEW
Keyword(s):  
Climate Change ◽  
Climate Change Scenarios ◽  
Dimensional Model ◽  
One Dimensional ◽  
Inundation Maps

scholarly journals Sensitivity of Rhonegletscher, Switzerland, to climate change: experiments with a one-dimensional flowline model

1998 ◽  
Vol 44 (147) ◽  
pp. 383-393 ◽  
Author(s):  
Jakob Wallinga ◽  
Roderik S.W. Van De Wal
Keyword(s):  
Climate Change ◽  
Statistical Correlation ◽  
Equilibrium Line ◽  
Climate Change Scenarios ◽  
Climate Data ◽  
Equilibrium Line Altitude ◽  
Glacier Surface ◽  
One Dimensional ◽  
Glacier Length ◽  
Warming Rate

AbstractA one-dimensional time-dependent flowline model of Rhonegletscher, Switzerland, has been used to test the glacier’s response to climatic warming. Mass-balance variations over the last 100 years are obtained from observations of the equilibrium-line altitude (ELA) and a reconstruction of the ELA based on a statistical correlation between temperature and ELA. For the period prior to AD 1882, for which no reliable climate data exist, we chose equilibrium-line altitudes that enabled us to simulate accurately the glacier length from AD 1602.The model simulates the historical glacier length almost perfectly and glacier geometry very well. It underestimates glacier-surface velocities by 1-18%. Following these reference experiments, we investigated the response of Rhonegletscher to a number of climate-change scenarios for the period AD 1990-2100. For a constant climate equal to the 1961-90 mean, the model predicts a 6% decrease in glacier volume by AD 2100. Rhonegletscher will retreat by almost 1 km over the next 100 years at this scenario. At a warming rate of 0.04 K a-1, only 4% of the glacier volume will be left by AD 2100.

scholarly journals Sensitivity of Rhonegletscher, Switzerland, to climate change: experiments with a one-dimensional flowline model

1998 ◽  
Vol 44 (147) ◽  
pp. 383-393 ◽  
Author(s):  
Jakob Wallinga ◽  
Roderik S.W. Van De Wal
Keyword(s):  
Climate Change ◽  
Statistical Correlation ◽  
Equilibrium Line ◽  
Climate Change Scenarios ◽  
Climate Data ◽  
Equilibrium Line Altitude ◽  
Glacier Surface ◽  
One Dimensional ◽  
Glacier Length ◽  
Warming Rate

AbstractA one-dimensional time-dependent flowline model of Rhonegletscher, Switzerland, has been used to test the glacier’s response to climatic warming. Mass-balance variations over the last 100 years are obtained from observations of the equilibrium-line altitude (ELA) and a reconstruction of the ELA based on a statistical correlation between temperature and ELA. For the period prior to AD 1882, for which no reliable climate data exist, we chose equilibrium-line altitudes that enabled us to simulate accurately the glacier length from AD 1602.The model simulates the historical glacier length almost perfectly and glacier geometry very well. It underestimates glacier-surface velocities by 1-18%. Following these reference experiments, we investigated the response of Rhonegletscher to a number of climate-change scenarios for the period AD 1990-2100. For a constant climate equal to the 1961-90 mean, the model predicts a 6% decrease in glacier volume by AD 2100. Rhonegletscher will retreat by almost 1 km over the next 100 years at this scenario. At a warming rate of 0.04 K a-1, only 4% of the glacier volume will be left by AD 2100.

scholarly journals Assessing the operation rules of a reservoir system based on a detailed modelling-chain

2014 ◽  
Vol 2 (9) ◽  
pp. 5797-5834
Author(s):  
M. Bruwier ◽  
S. Erpicum ◽  
M. Pirotton ◽  
P. Archambeau ◽  
B. Dewals
Keyword(s):  
Climate Change ◽  
Flood Control ◽  
Damage Model ◽  
Flood Damage ◽  
Low Flow ◽  
Climate Change Scenarios ◽  
One Dimensional ◽  
Reservoir System ◽  
Operation Rules ◽  
Hydropower Production

Abstract. According to available climate change scenarios for Belgium, drier summers and wetter winters are expected. In this study, we focus on two muti-purpose reservoirs located in the Vesdre catchment, which is part of the Meuse basin. The current operation rules of the reservoirs are first analysed. Next, the impacts of two climate change scenarios are assessed and enhanced operation rules are proposed to mitigate these impacts. For this purpose, an integrated model of the catchment was used. It includes a hydrological model, one-dimensional and two-dimensional hydraulic models of the river and its main tributaries, a model of the reservoir system and a flood damage model. Five performance indicators of the reservoir system have been defined, reflecting its ability to provide sufficient drinking, to control floods, to produce hydropower and to reduce low-flow condition. As shown by the results, enhanced operation rules may improve the drinking water potential and the low-flow augmentation while the existing operation rules are efficient for flood control and for hydropower production.

Modelling impacts of different climate change scenarios on soil water regime of a Mollisol

2005 ◽  
Vol 33 (1) ◽  
pp. 185-188 ◽  
Author(s):  
Csilla Farkas ◽  
Roger Randriamampianina ◽  
Juraj Majerčak
Keyword(s):  
Climate Change ◽  
Soil Water ◽  
Water Regime ◽  
Climate Change Scenarios ◽  
Soil Water Regime

Modelling Techniques in Applied Glaciology: Numerical Modelling of Avalanches

1983 ◽  
Vol 4 ◽  
pp. 297-297
Author(s):  
G. Brugnot
Keyword(s):  
Finite Difference Method ◽  
Transverse Velocity ◽  
Longitudinal Velocity ◽  
Momentum Conservation ◽  
Dimensional Model ◽  
One Dimensional ◽  
Modelling Techniques ◽  
Reference Grid ◽  
The One ◽  
Near Future

We consider the paper by Brugnot and Pochat (1981), which describes a one-dimensional model applied to a snow avalanche. The main advance made here is the introduction of the second dimension in the runout zone. Indeed, in the channelled course, we still use the one-dimensional model, but, when the avalanche spreads before stopping, we apply a (x, y) grid on the ground and six equations have to be solved: (1) for the avalanche body, one equation for continuity and two equations for momentum conservation, and (2) at the front, one equation for continuity and two equations for momentum conservation. We suppose the front to be a mobile jump, with longitudinal velocity varying more rapidly than transverse velocity.We solve these equations by a finite difference method. This involves many topological problems, due to the actual position of the front, which is defined by its intersection with the reference grid (SI, YJ). In the near future our two directions of research will be testing the code on actual avalanches and improving it by trying to make it cheaper without impairing its accuracy.

Sign in / Sign up

Export Citation Format

Share Document