Journal: Water Resources Research

Loading...

Abbreviation

Water Resour. Res.

Publisher

Wiley

Journal Volumes

ISSN

0043-1397
1944-7973

Description

Search Results

Publications 1 - 10 of 204
  • Brocca, L.; Zucco, G.; Mittelbach, H.; et al. (2014)
    Water Resources Research
  • Mazzotti, Giulia; Essery, Richard; Webster, Clare; et al. (2020)
    Water Resources Research
    The complex dynamics of snow accumulation and melt processes under forest canopies entail major observational and modeling challenges, as they vary strongly in space and time. In this study, we present novel data sets acquired with mobile multisensor platforms in subalpine and boreal forest stands. These data sets include spatially and temporally resolved measurements of shortwave and longwave irradiance, air and snow surface temperatures, wind speed, and snow depth, all coregistered to canopy structure information. We then apply the energy balance snow model FSM2 to obtain concurrent, distributed simulations of the forest snowpack at very high (“hyper”) resolution (2 m). Our data sets allow us to assess the performance of alternative canopy representation strategies within FSM2 at the level of individual snow energy balance components and in a spatially explicit manner. We demonstrate the benefit of accounting for detailed spatial patterns of shortwave and longwave radiation transfer through the canopy and show the importance of describing wind attenuation by the canopy using stand‐scale metrics. With the proposed canopy representation, snowmelt dynamics in discontinuous forest stands were successfully reproduced. Hyper‐resolution simulations resolving these effects provide an optimal basis for assessing the snow‐hydrological impacts of forest disturbances and for validating and improving the representation of forest snow processes in land surface models intended for coarser‐scale applications. © 2020 American Geophysical Union
  • Do, Hong Xuan; Westra, Seth; Leonard, Michael; et al. (2020)
    Water Resources Research
  • Holzner, C. P.; Tomonaga, Y.; Stöckli, A.; et al. (2012)
    Water Resources Research
  • Calamita, Elisa; Vanzo, Davide; Wehrli, Bernhard; et al. (2021)
    Water Resources Research
    Water quality in tropical rivers is changing rapidly. The ongoing boom of dam construction for hydropower is one of the drivers for this change. In particular, the stratification in tropical reservoirs induces oxygen deficits in their deep waters and warmer surface water temperatures, which often translate into altered thermal and oxygen regimes of downstream river systems, with cascading consequences for the entire aquatic ecosystem. Operation rules of reservoirs, involving water intakes at different levels, could mitigate the consequences for downstream water quality. However, optimized water management of deep reservoirs relies on predictive models for water quality, but such predictive capability is often lacking for tropical dams. Here we focus on the Zambezi River Basin (southern Africa) to address this gap. Using the one-dimensional General Lake Model, we reproduced the internal dynamics of the transboundary Lake Kariba, the world’s largest artificial lake by volume, created by damming the Zambezi River at the border between Zambia and Zimbabwe. Through this modeling approach, we assessed and quantified the thermal and oxygen alteration in the Zambezi River downstream of the reservoir. Results suggest that these alterations depend directly on Kariba’s stratification dynamics, its water level and the transboundary policies for water withdrawal from the reservoir. Scenario calculations indicate a large potential for mitigating downstream water quality alterations by implementing a hypothetical selective withdrawal technology. However, we show that a different and cooperative management of the existing infrastructure of Kariba Dam has the potential to mitigate most of the actual water quality alterations.
  • Peleg, Nadav; Morin, Efrat (2014)
    Water Resources Research
  • Marchionni, Valentina; Daly, Edoardo; Manoli, Gabriele; et al. (2020)
    Water Resources Research
  • Schneider, Johannes M.; Rickenmann, Dieter; Turowski, Jens M.; et al. (2015)
    Water Resources Research
  • Covington, M.D.; Luhmann, A.J.; Gabrovšek, F.; et al. (2011)
    Water Resources Research
  • Berghuijs, Wouter Reinier; Larsen, Joshua R.; van Emmerik, Tim H.M.; et al. (2017)
    Water Resources Research
Publications 1 - 10 of 204