Global Heat Uptake by Inland Waters

Autor: Annette B.G. Janssen, Sonia I. Seneviratne, Wim Thiery, David M. Lawrence, Yadu Pokhrel, Malgorzata Golub, Donald C. Pierson, Simon N. Gosling, Inne Vanderkelen, H. Mller Schmied, Zeli Tan, N. P. M. van Lipzig, Marjorie Perroud, Victor Stepanenko, R. I. Woolway, Rafael Marcé, Bram Droppers, Jacob Schewe, Yusuke Satoh
Přispěvatelé: Hydrology and Hydraulic Engineering, Faculty of Engineering, Geography
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Geophysical Research Letters, 47 (12)
Geophysical Research Letters 47 (2020) 12
Geophysical Research Letters, 2020, vol. 47, núm. 12, p. e2020GL087867
Articles publicats (ICRA)
DUGiDocs – Universitat de Girona
instname
Geophysical Research Letters, 47(12)
ISSN: 0094-8276
1944-8007
Popis: Heat uptake is a key variable for understanding the Earth system response to greenhouse gas forcing. Despite the importance of this heat budget, heat uptake by inland waters has so far not been quantified. Here we use a unique combination of global‐scale lake models, global hydrological models and Earth system models to quantify global heat uptake by natural lakes, reservoirs, and rivers. The total net heat uptake by inland waters amounts to 2.6 ± 3.2 ×1020 J over the period 1900–2020, corresponding to 3.6% of the energy stored on land. The overall uptake is dominated by natural lakes (111.7%), followed by reservoir warming (2.3%). Rivers contribute negatively (‐14%) due to a decreasing water volume. The thermal energy of water stored in artificial reservoirs exceeds inland water heat uptake by a factor ∼10.4. This first quantification underlines that the heat uptake by inland waters is relatively small, but non‐negligible.
Geophysical Research Letters, 47 (12)
ISSN:0094-8276
ISSN:1944-8007
Databáze: OpenAIRE
Externí odkaz: