Data assimilation of satellite-based terrestrial water storage changes into a hydrology land-surface model

Bahrami, Ala; Goı̈ta, Kalifa; Magagi, Ramata; Davison, Bruce; Razavi, Saman; Elshamy, Mohamed; Princz, Daniel

doi:10.1016/j.jhydrol.2020.125744

Cited by 11 publications

(8 citation statements)

References 94 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The basin covers large areas of Boreal and Taiga Forest, with relatively low relief and underlain by glacial plains in the south and southwest and by the Precambrian Shield with slightly more undulating topography in the east (Woo and Rouse, 2008). Much of the central and northern part of the basin is underlain by discontinuous and continuous permafrost, which is thawing at an accelerating rate (Burn and Kokelj, 2009;Baltzer et al, 2014). In the plains region, the basin includes several very large lakes, and a large portion of the area is covered by smaller lakes and wetlands (Woo et al, 2008).…”

Section: Ecological Regions and River Systems Of The Interior Of Western Canadamentioning

confidence: 99%

“…Where ice-rich soils occur, there has been active thermokarst development, slumping, and ground surface subsidence (Olefeldt et al, 2016;Turetsky et al, 2019). In permafrost lowlands of the Taiga Plain, soil thawing has led to subsidence and inundation of ground surfaces resulting in extensive forest loss, fragmentation, and concomitant wetland expansion and conversion mostly to sphagnum-dominated bogs (Baltzer et al, 2014;Helbig et al, 2016). In the southern Arctic, increased permafrost thawing is leading to changes in channel permafrost conditions, increasing winter groundwater flow in the channel, and increasing occurrence of aufeis formation (Ensom et al, 2020).…”

Section: Permafrost Thaw As a Driver Of Landscape Change And Hydrological Reroutingmentioning

confidence: 99%

“…Some of the energy driving the thaw of permafrost enters the permafrost bodies laterally from adjacent permafrost-free terrains (Kurylyk et al, 2016). As such, the rate of permafrost thaw and forest loss is accelerating as patches of permafrost plateau become more fragmented, leading to greater proportional plateau edge to total plateau area (Quinton and Baltzer, 2013;Baltzer et al, 2014;Carpino et al, 2018). Reduced soil stability during thaw events can cause substantial mass wasting through thermokarst and retrogressive thaw slumps, with impacts on local vegetation and downstream drainage (Schuur and Mack, 2018).…”

Section: Permafrost Thaw As a Driver Of Landscape Change And Hydrological Reroutingmentioning

confidence: 99%

See 2 more Smart Citations

Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 2: Future change in cryosphere, vegetation, and hydrology

DeBeer

Wheater

Pomeroy

et al. 2021

Hydrol. Earth Syst. Sci.

Self Cite

View full text Add to dashboard Cite

Abstract. The interior of western Canada, like many similar cold mid- to high-latitude regions worldwide, is undergoing extensive and rapid climate and environmental change, which may accelerate in the coming decades. Understanding and predicting changes in coupled climate–land–hydrological systems are crucial to society yet limited by lack of understanding of changes in cold-region process responses and interactions, along with their representation in most current-generation land-surface and hydrological models. It is essential to consider the underlying processes and base predictive models on the proper physics, especially under conditions of non-stationarity where the past is no longer a reliable guide to the future and system trajectories can be unexpected. These challenges were forefront in the recently completed Changing Cold Regions Network (CCRN), which assembled and focused a wide range of multi-disciplinary expertise to improve the understanding, diagnosis, and prediction of change over the cold interior of western Canada. CCRN advanced knowledge of fundamental cold-region ecological and hydrological processes through observation and experimentation across a network of highly instrumented research basins and other sites. Significant efforts were made to improve the functionality and process representation, based on this improved understanding, within the fine-scale Cold Regions Hydrological Modelling (CRHM) platform and the large-scale Modélisation Environmentale Communautaire (MEC) – Surface and Hydrology (MESH) model. These models were, and continue to be, applied under past and projected future climates and under current and expected future land and vegetation cover configurations to diagnose historical change and predict possible future hydrological responses. This second of two articles synthesizes the nature and understanding of cold-region processes and Earth system responses to future climate, as advanced by CCRN. These include changing precipitation and moisture feedbacks to the atmosphere; altered snow regimes, changing balance of snowfall and rainfall, and glacier loss; vegetation responses to climate and the loss of ecosystem resilience to wildfire and disturbance; thawing permafrost and its influence on landscapes and hydrology; groundwater storage and cycling and its connections to surface water; and stream and river discharge as influenced by the various drivers of hydrological change. Collective insights, expert elicitation, and model application are used to provide a synthesis of this change over the CCRN region for the late 21st century.

show abstract

Section: Ecological Regions and River Systems Of The Interior Of Western Canadamentioning

confidence: 99%

Section: Permafrost Thaw As a Driver Of Landscape Change And Hydrological Reroutingmentioning

confidence: 99%

Section: Permafrost Thaw As a Driver Of Landscape Change And Hydrological Reroutingmentioning

confidence: 99%

See 1 more Smart Citation

Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 2: Future change in cryosphere, vegetation, and hydrology

DeBeer

Wheater

Pomeroy

et al. 2021

Hydrol. Earth Syst. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The fidelity of the model has been assessed for permafrost (Figure 3) and hydrological fluxes and states including evapotranspiration and snowpack. Bahrami et al (2021) show an evaluation for the Liard sub‐basin of simulated total water storage in comparison to GRACE data and SWE against Canadian Meteorological Centre (CMC) snowpack data.…”

Section: Model Applicationsmentioning

confidence: 99%

“…Multi‐criteria optimization with both streamflow and GRACE observations gave improved parameter identification and storage and streamflow simulations, demonstrating the benefits of GRACE data at these large scales, allowing the use of the model's internal states in model fitting in addition to streamflow. More recently, Bahrami et al (2021) integrated the Ensemble Kalman Smoother (EnKS, Evensen & Van Leeuwen, 2000) for data assimilation, and showed improved monthly SWE estimates at basin and grid scales for the Liard basin. GRACE data assimilation in streamflow simulations was evaluated against observations from multiple river gauges, where it improved high flows' simulations during the snowmelt season.…”

Section: Recent Scientific Developments In Meshmentioning

confidence: 99%

Advances in modelling large river basins in cold regions with Modélisation Environmentale Communautaire—Surface and Hydrology (MESH), the Canadian hydrological land surface scheme

Wheater

Pomeroy

Pietroniro

et al. 2022

Hydrological Processes

Self Cite

View full text Add to dashboard Cite

Cold regions provide water resources for half the global population yet face rapid change. Their hydrology is dominated by snow, ice and frozen soils, and climate warming is having profound effects. Hydrological models have a key role in predicting changing water resources but are challenged in cold regions. Ground‐based data to quantify meteorological forcing and constrain model parameterization are limited, while hydrological processes are complex, often controlled by phase change energetics. River flows are impacted by poorly quantified human activities. This paper discusses the scientific and technical challenges of the large‐scale modelling of cold region systems and reports recent modelling developments, focussing on MESH, the Canadian community hydrological land surface scheme. New cold region process representations include improved blowing snow transport and sublimation, lateral land‐surface flow, prairie pothole pond storage dynamics, frozen ground infiltration and thermodynamics, and improved glacier modelling. New algorithms to represent water management include multistage reservoir operation. Parameterization has been supported by field observations and remotely sensed data; new methods for parameter identification have been used to evaluate model uncertainty and support regionalization. Additionally, MESH has been linked to broader decision‐support frameworks, including river ice simulation and hydrological forecasting. The paper also reports various applications to the Saskatchewan and Mackenzie River basins in western Canada (0.4 and 1.8 million km2). These basins arise in glaciated mountain headwaters, are partly underlain by permafrost, and include remote and incompletely understood forested, wetland, agricultural and tundra ecoregions. These illustrate the current capabilities and limitations of cold region modelling, and the extraordinary challenges to prediction, including the need to overcoming biases in forcing data sets, which can have disproportionate effects on the simulated hydrology.

show abstract

Remote sensing-based precipitation forecasting using cloud optical characteristics: threshold optimization and evaluation in Northern and Western Iran

Salahi,

Ashrafzadeh,

Vazifedoust

2023

Nat Hazards

View full text Add to dashboard Cite

Data assimilation of satellite-based terrestrial water storage changes into a hydrology land-surface model

Cited by 11 publications

References 94 publications

Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 2: Future change in cryosphere, vegetation, and hydrology

Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 2: Future change in cryosphere, vegetation, and hydrology

Advances in modelling large river basins in cold regions with Modélisation Environmentale Communautaire—Surface and Hydrology (MESH), the Canadian hydrological land surface scheme

Remote sensing-based precipitation forecasting using cloud optical characteristics: threshold optimization and evaluation in Northern and Western Iran

Contact Info

Product

Resources

About