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
Keyword(s):  
Land Cover ◽  
Mass Balance ◽  
Boreal Lakes ◽  
Balance Assessment ◽  
Permafrost Thaw ◽  
Isotope Mass Balance

scholarly journals A synthesis of three decades of hydrological research at Scotty Creek, NWT, Canada

2019 ◽  
Vol 23 (4) ◽  
pp. 2015-2039 ◽  
Author(s):  
William Quinton ◽  
Aaron Berg ◽  
Michael Braverman ◽  
Olivia Carpino ◽  
Laura Chasmer ◽  
...  
Keyword(s):  
Land Cover ◽  
Water Flux ◽  
Study Region ◽  
Physical Mechanisms ◽  
Permafrost Thaw ◽  
Discontinuous Permafrost ◽  
Modelling Studies ◽  
Hydrology And Water Resources ◽  
And Storage ◽  
Storage Processes

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.

scholarly journals Isotope mass-balance constraints preclude that mafic weathering drove Neogene cooling

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

The isotopic composition of sedimentary organic zinc and implications for the global Zn isotope mass balance

2021 ◽  
Vol 314 ◽  
pp. 16-26
Author(s):  
Yiyue Zhang ◽  
Noah J. Planavsky ◽  
Mingyu Zhao ◽  
Terry Isson ◽  
Dan Asael ◽  
...  
Keyword(s):  
Isotopic Composition ◽  
Mass Balance ◽  
Organic Zinc ◽  
Isotope Mass Balance

scholarly journals Mass-Balance Studies of Gara Glacier

1977 ◽  
Vol 18 (80) ◽  
pp. 415-423 ◽  
Author(s):  
V. K. Raina ◽  
M. K. Kaul ◽  
Surinder Singh
Keyword(s):  
Mass Balance ◽  
Western Himalaya ◽  
Balance Assessment ◽  
Valley Glacier ◽  
One Year

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.

scholarly journals Modelling lake water and isotope mass balance variations of Lake Azigza in the Moroccan Middle Atlas under Mediterranean climate

2019 ◽  
Vol 19 (8) ◽  
pp. 2697-2709 ◽  
Author(s):  
Rachid Adallal ◽  
Christine Vallet-Coulomb ◽  
Laurence Vidal ◽  
Abdelfattah Benkaddour ◽  
Ali Rhoujjati ◽  
...  
Keyword(s):  
Mass Balance ◽  
Lake Water ◽  
Mediterranean Climate ◽  
Middle Atlas ◽  
Isotope Mass Balance

Changes in root zone storage capacity and their effects on river discharge and gross primary production

2020 ◽  
Author(s):  
Rodolfo Nóbrega ◽  
David Sandoval ◽  
Colin Prentice
Keyword(s):  
Land Cover ◽  
Primary Production ◽  
Mass Balance ◽  
Land Cover Change ◽  
Storage Capacity ◽  
Root Zone ◽  
Gross Primary Production ◽  
Terrestrial Ecosystem ◽  
Ecosystem Models ◽  
Stress Functions

<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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