scholarly journals Role of Lateral Terrestrial Water Flow on the Regional Water Cycle in a Complex Terrain Region: Investigation With a Fully Coupled Model System

2019 ◽  
Vol 124 (2) ◽  
pp. 507-529 ◽  
Author(s):  
Thomas Rummler ◽  
Joel Arnault ◽  
David Gochis ◽  
Harald Kunstmann
Keyword(s):  
Water Flow ◽  
Complex Terrain ◽  
Water Cycle ◽  
Coupled Model ◽  
Model System ◽  
Terrestrial Water ◽  
Fully Coupled ◽  
Regional Water

scholarly journals A New Coupled Modeling Approach to Simulate Terrestrial Water Storage in Southern California

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 808 ◽  
Author(s):  
Fernando De Sales ◽  
David E. Rother
Keyword(s):  
Southern California ◽  
Water Storage ◽  
Coupled Model ◽  
Atmospheric Conditions ◽  
Terrestrial Water Storage ◽  
Aquifer Recharge ◽  
Coupled Modeling ◽  
Aquifer Systems ◽  
Terrestrial Water ◽  
Fully Coupled

The study introduces a new atmosphere-land-aquifer coupled model and evaluates terrestrial water storage (TWS) simulations for Southern California between 2007 and 2016. It also examines the relationship between precipitation, groundwater, and soil moisture anomalies for the two primary aquifer systems in the study area, namely the Coastal Basin and the Basin and Range aquifers. Two model designs are introduced, a partially-coupled model forced by reanalysis atmospheric data, and a fully-coupled model, in which the atmospheric conditions were simulated. Both models simulate the temporal variability of TWS anomaly in the study area well (R2 ≥ 0.87, P < 0.01). In general, the partially-coupled model outperformed the fully-coupled model as the latter overestimated precipitation, which compromised soil and aquifer recharge and discharge. Simulations also showed that the drought experienced in the area between 2012 and 2016 caused a decline in TWS, evapotranspiration, and runoff of approximately 24%, 65%, and 11%, and 20%, 72% and 8% over the two aquifer systems, respectively. Results indicate that the models first introduced in this study can be a useful tool to further our understanding of terrestrial water storage variability at regional scales.

The role of groundwater in the Amazon water cycle: 3. Influence on terrestrial water storage computations and comparison with GRACE

2013 ◽  
Vol 118 (8) ◽  
pp. 3233-3244 ◽  
Author(s):  
Yadu N. Pokhrel ◽  
Ying Fan ◽  
Gonzalo Miguez-Macho ◽  
Pat J.-F. Yeh ◽  
Shin-Chan Han
Keyword(s):  
Water Cycle ◽  
Water Storage ◽  
Terrestrial Water Storage ◽  
Terrestrial Water

scholarly journals Role of the hydrological cycle in regulating the planetary climate system of a simple nonlinear dynamical model

2005 ◽  
Vol 12 (5) ◽  
pp. 741-753 ◽  
Author(s):  
K. M. Nordstrom ◽  
V. K. Gupta ◽  
T. N. Chase
Keyword(s):  
Hydrological Cycle ◽  
Water Cycle ◽  
Coupled Model ◽  
Coupled System ◽  
Relative Distribution ◽  
Species Trees ◽  
Nonlinear Coupled System ◽  
Highly Nonlinear ◽  
Negative Feedbacks ◽  
Fully Coupled

Abstract. We present the construction of a dynamic area fraction model (DAFM), representing a new class of models for an earth-like planet. The model presented here has no spatial dimensions, but contains coupled parameterizations for all the major components of the hydrological cycle involving liquid, solid and vapor phases. We investigate the nature of feedback processes with this model in regulating Earth's climate as a highly nonlinear coupled system. The model includes solar radiation, evapotranspiration from dynamically competing trees and grasses, an ocean, an ice cap, precipitation, dynamic clouds, and a static carbon greenhouse effect. This model therefore shares some of the characteristics of an Earth System Model of Intermediate complexity. We perform two experiments with this model to determine the potential effects of positive and negative feedbacks due to a dynamic hydrological cycle, and due to the relative distribution of trees and grasses, in regulating global mean temperature. In the first experiment, we vary the intensity of insolation on the model's surface both with and without an active (fully coupled) water cycle. In the second, we test the strength of feedbacks with biota in a fully coupled model by varying the optimal growing temperature for our two plant species (trees and grasses). We find that the negative feedbacks associated with the water cycle are far more powerful than those associated with the biota, but that the biota still play a significant role in shaping the model climate. third experiment, we vary the heat and moisture transport coefficient in an attempt to represent changing atmospheric circulations.

Stress self-sensing in Amplified Piezoelectric Actuators through a fully-coupled model of hysteresis

2020 ◽  
Vol 579 ◽  
pp. 411894
Author(s):  
Valerio Apicella ◽  
Carmine Stefano Clemente ◽  
Daniele Davino ◽  
Damiano Leone ◽  
Ciro Visone
Keyword(s):  
Coupled Model ◽  
Piezoelectric Actuators ◽  
Fully Coupled
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