Runoff to boreal lakes linked to land cover, watershed morphology and permafrost thaw: a 9-year isotope mass balance assessment

2015 ◽  
Vol 29 (18) ◽  
pp. 3848-3861 ◽  
Author(s):  
J. J. Gibson ◽  
S. J. Birks ◽  
Y. Yi ◽  
D. H. Vitt
2019 ◽  
Vol 23 (4) ◽  
pp. 2015-2039 ◽  
Author(s):  
William Quinton ◽  
Aaron Berg ◽  
Michael Braverman ◽  
Olivia Carpino ◽  
Laura Chasmer ◽  
...  

Abstract. Scotty Creek, Northwest Territories (NWT), Canada, has been the focus of hydrological research for nearly three decades. Over this period, field and modelling studies have generated new insights into the thermal and physical mechanisms governing the flux and storage of water in the wetland-dominated regions of discontinuous permafrost that characterises much of the Canadian and circumpolar subarctic. Research at Scotty Creek has coincided with a period of unprecedented climate warming, permafrost thaw, and resulting land cover transformations including the expansion of wetland areas and loss of forests. This paper (1) synthesises field and modelling studies at Scotty Creek, (2) highlights the key insights of these studies on the major water flux and storage processes operating within and between the major land cover types, and (3) provides insights into the rate and pattern of the permafrost-thaw-induced land cover change and how such changes will affect the hydrology and water resources of the study region.


2021 ◽  
Vol 118 (30) ◽  
pp. e2026345118 ◽  
Author(s):  
Jeremy K. Caves Rugenstein ◽  
Daniel E. Ibarra ◽  
Shuang Zhang ◽  
Noah J. Planavsky ◽  
Friedhelm von Blanckenburg

2021 ◽  
Vol 314 ◽  
pp. 16-26
Author(s):  
Yiyue Zhang ◽  
Noah J. Planavsky ◽  
Mingyu Zhao ◽  
Terry Isson ◽  
Dan Asael ◽  
...  

1977 ◽  
Vol 18 (80) ◽  
pp. 415-423 ◽  
Author(s):  
V. K. Raina ◽  
M. K. Kaul ◽  
Surinder Singh

AbstractThe Gara Glacier, a north-facing valley glacier situated in the western Himalaya, was selected to be part of the study undertaken by India in connection with the International Hydrological Decade. This paper deals with the procedure adopted and the results obtained for mass-balance assessment over a period of one year between September 1974 and September 1975. The glacier has recorded a positive net balance of the order of 2.48 X 106 m3 in terms of water equivalent.


2019 ◽  
Vol 19 (8) ◽  
pp. 2697-2709 ◽  
Author(s):  
Rachid Adallal ◽  
Christine Vallet-Coulomb ◽  
Laurence Vidal ◽  
Abdelfattah Benkaddour ◽  
Ali Rhoujjati ◽  
...  

2020 ◽  
Author(s):  
Rodolfo Nóbrega ◽  
David Sandoval ◽  
Colin Prentice

<p>Root zone storage capacity (R<sub>z</sub>) is a parameter widely used in terrestrial ecosystem models that estimate the amount of soil moisture available for transpiration. However, R<sub>z</sub> is subject to large uncertainty, due to the lack of data on the distribution of soil properties and the depth of plant roots that actively take up water. Our study makes use of a mass-balance approach to investigate R<sub>z</sub> in different ecosystems, and changes in water fluxes caused by land-cover change. The method needs no land-cover or soil information, and uses precipitation (P) and evapotranspiration (ET) time series to estimate the seasonal water deficit. To account for some of the uncertainty in ET, we use different methods for ET estimation, including methods based on satellite estimates, and modelling approaches that back-calculate ET from other ecosystem fluxes. We show that reduced ET due to land-cover change reduces R<sub>z</sub>, which in turn increases baseflow in regions with a strong rainfall seasonality. This finding allows us to analyse the trade-off between gross primary production and hydrological fluxes at river basin scales. We also consider some ideas on how to use mass-balance R<sub>z</sub> in water-stress functions as incorporated in existing terrestrial ecosystem models.</p>


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