Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Scott Jasechko"'
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 19, Pp n/a-n/a (2023)
Abstract Branching river networks are prominent features of the Earth's surface, but the mechanisms that create branching river networks patterns remain elusive. Recent studies have suggested that climate, tectonics, and lithology may control both lo
Externí odkaz:
https://doaj.org/article/c9b2ecbec77e42b2a7251e8e90cd9afe
Autor:
Grant Ferguson, Jennifer C. McIntosh, Scott Jasechko, Ji-Hyun Kim, James S. Famiglietti, Jeffrey J. McDonnell
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-8 (2023)
At depths of over 500 m, deep groundwater has long residence times and likely contributes less than 0.1% to global streamflow and only sporadically connects with the surface terrestrial water cycle on geological timescales, according to estimates der
Externí odkaz:
https://doaj.org/article/f3e2dba1ecb2448297404dbfe9b0529a
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Decades-old groundwater is vulnerable to pollution from land uses. This work shows that decades old groundwater flows to deep depths where groundwater pumping is more intense, implying that groundwater pumping can endanger deep groundwater quality.
Externí odkaz:
https://doaj.org/article/d1678648e2fd42fc88edc63b9c3deeb1
Autor:
Hongxiu Wang, Han Li, Wei Xiang, Yanwei Lu, Huanhuan Wang, Wei Hu, Bingcheng Si, Scott Jasechko, Jeffrey J. McDonnell
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 5, Pp n/a-n/a (2023)
Abstract Temperature proxies for paleoclimate reconstruction have been made typically via ice cores, tree rings, stalagmites, and lake sediments. While extremely useful, these proxies can be limited spatially. Here we sampled a 98 m “soil core” f
Externí odkaz:
https://doaj.org/article/06a0b08050d64b0fa57e1989001acac5
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Fossil groundwater has been under the ground for more than ~12 thousand years. Here the authors show that many wells in the United States tap fossil groundwater resources, and that the frequency that wells are drilled into fossil aquifers is increasi
Externí odkaz:
https://doaj.org/article/7a7bb0876e0a444fa2243fbbdb13c899
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
The authors here investigate in the susceptibility of coastal aquifers to seawater intrusion. Based on 20 years’ worth of observational data, the study finds that 15% of the US coastline is affected by landward hydraulic gradients conducive to seaw
Externí odkaz:
https://doaj.org/article/63f39c6dbe9e4236af61e206ef6cb08f
Autor:
Mary Kang, Jade Boutot, Renee C McVay, Katherine A Roberts, Scott Jasechko, Debra Perrone, Tao Wen, Greg Lackey, Daniel Raimi, Dominic C Digiulio, Seth B C Shonkoff, J William Carey, Elise G Elliott, Donna J Vorhees, Adam S Peltz
Publikováno v:
Environmental Research Letters, Vol 18, Iss 7, p 074012 (2023)
Hundreds of thousands of documented and undocumented orphaned oil and gas wells exist in the United States (U.S.). These wells have the potential to contaminate water supplies, degrade ecosystems, and emit methane and other air pollutants. Thus, orph
Externí odkaz:
https://doaj.org/article/6775dafc38ee45f199bbae242ecfaeac
Autor:
Scott Jasechko, Debra Perrone
Publikováno v:
Earth's Future, Vol 8, Iss 4, Pp n/a-n/a (2020)
Abstract Declining water tables are causing wells to run dry in California, but the prevalence and spatial distribution of wells that have run dry are not known beyond anecdotal and voluntary reports. Here, we apply a new, simple, and measurement‐d
Externí odkaz:
https://doaj.org/article/d8c27a39501448b0b5d882cf04464338
Publikováno v:
Environmental Research Letters, Vol 13, Iss 11, p 114013 (2018)
Groundwater resources are being stressed from the top down and bottom up. Declining water tables and near-surface contamination are driving groundwater users to construct deeper wells in many US aquifer systems. This has been a successful short-term
Externí odkaz:
https://doaj.org/article/4d331b6ed86e427fb5de9d7dd4191509
Autor:
Scott Jasechko, Richard G Taylor
Publikováno v:
Environmental Research Letters, Vol 10, Iss 12, p 124015 (2015)
Dependence upon groundwater to meet rising agricultural and domestic water needs is expected to increase substantially across the tropics where, by 2050, over half of the world’s population is projected to live. Rare, long-term groundwater-level re
Externí odkaz:
https://doaj.org/article/513df3c79085438cbe63b03b35c8854f