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drought

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Journal Article
Published: 25 May 2022
Quarterly Journal of Engineering Geology and Hydrogeology (2022) 55 (4): qjegh2021-052.
..., erosion risk, rainfall, drought, etc.) in the various parts of the country. Appropriate designs will be applied that find a balance between the risks of climate impacts and related repair and maintenance costs on the one hand, and the construction costs on the other hand. Government of the Union...
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Journal Article
Published: 21 February 2022
Environmental & Engineering Geoscience (2022) 28 (1): 113–131.
Series: Geological Society, London, Special Publications
Published: 28 October 2021
DOI: 10.1144/SP507-2019-154
EISBN: 9781786209948
.... For the same time interval, while the temperature TS show an increasing trend, with a steeper gradient since the 1980s, the precipitation TS presents a weak decreasing tendency. Increase in the δ 13 C values of speleothems from −33‰ to −24‰ (VPDB) is correlated with increasing temperature and drought...
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Series: GSA Special Papers
Published: 12 August 2021
DOI: 10.1130/2018.2536(02)
EISBN: 9780813795362
...-scale atmospheric subsidence over the region, suppressing precipitation and producing warm, dry summers ( Mock, 1996) . Fire season runs from May to October, with most fires occurring during the seasonally persistent summer drought. Figure 1. Location of Little Lake, extent of Cordilleran ice...
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Series: GSA Special Papers
Published: 12 August 2021
DOI: 10.1130/2018.2536(05)
EISBN: 9780813795362
..., with lowstands (<1225 m) estimated during persistent drought periods and highstands (>1250 m) estimated during pluvial episodes, indicates that Walker Lake is sensitive to regional hydroclimate conditions. In midlatitude regions such as the Walker Lake basin, storm tracks are primary drivers of weather...
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Series: GSA Special Papers
Published: 12 August 2021
DOI: 10.1130/2018.2536(09)
EISBN: 9780813795362
... ABSTRACT While drought represents a serious threat to the Pacific southwestern United States, floods represent an equally formidable threat. This risk is so significant that the U.S. Geological Survey created the ARkStorm Project. This project aims to prepare California for a future storm(s...
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Series: GSA Special Papers
Published: 12 August 2021
DOI: 10.1130/2019.2536(11)
EISBN: 9780813795362
..., however, which proxy best estimates the absolute amplitude of lake-level variability. Chi is the only available proxy that records lake-level variability in all four lakes prior to 2000 yr ago, and it shows consistent evidence of a large multicentennial period of drought. TIC, chi, and δ 18 O...
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Journal Article
Journal: Geology
Published: 05 April 2021
Geology (2021) 49 (7): 857–861.
... of potential dust sources indicates that current summer and winter dust sources in the Sonoran Desert are under a supply-limited state. Dust fluxes were higher during wetter phases of the Holocene when winter sources dominated. During the middle Holocene drought, dust fluxes were minimal and dominated...
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Journal Article
Published: 07 December 2020
Environmental & Engineering Geoscience (2020) 26 (4): 463–479.
... A. In Cascabel near Gamez Road, sources A and C combined to support base flow that had disappeared by 2019. Near Redington, source C appears to have operated through a limestone aquifer vulnerable to short-term drought. Groundwater sub-basins separated by impermeable sills in the riverbed are evolving...
Journal Article
Journal: Geology
Published: 15 October 2019
Geology (2019) 47 (12): 1112–1116.
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Journal Article
Journal: Geology
Published: 05 April 2019
Geology (2019) 47 (5): 491–494.
...Petter Nyman; Ian D. Rutherfurd; Patrick N.J. Lane; Gary J. Sheridan Abstract Between 2003 and 2013, drought, large wildfires, and record-breaking rainfall contributed to debris flows in southeast Australia that appear to be unprecedented in spatial extent and density in historical records. Here...
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Journal Article
Journal: Geology
Published: 29 January 2019
Geology (2019) 47 (3): 255–258.
.... Multiple proxies, including peat development rate, pollen assemblages, and peat cellulose isotopic records, show wet conditions during the early and late Holocene, but drought condition during the mid-Holocene. This hydroclimatic pattern is similar to those extracted from other peatlands nearby and those...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP462.6
EISBN: 9781786203434
... such as El Niño–Southern Oscillation. Two distinctive trans-Pacific events in the mid-fourteenth and late-eighteenth centuries are distinguished by elevated aerosol concentrations in cores from the Peruvian Andes and the Tibetan Himalaya. Today aerosol sources for these areas are enhanced by droughts...
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Journal Article
Journal: PALAIOS
Published: 01 August 2017
PALAIOS (2017) 32 (8): 556–557.
... to an extended drought and thus perishing over time. There is no problem with the concept that the herd was experiencing drought conditions. In fact, Fox and Smith (1992) and Haynes (1992) clearly state drought as one reason the herd was concentrated around a limited water source and the vegetative landscape...
Journal Article
Journal: PALAIOS
Published: 01 August 2017
PALAIOS (2017) 32 (8): 558.
... ). Drought remains a plausible and parsimonious explanation that can be quantitatively tested (cf. Hoppe 2004 )—there is currently a robust serial sampling/isotopic analysis (δ 18 O) underway (see Wiest et al. 2016 ) on four teeth from individual mammoths from WMNM. Smith cites inability to link...
Journal Article
Published: 01 February 2017
Vadose Zone Journal (2017) 16 (2): 1–17.
...Benjamin Bass; M. Bayani Cardenas; Kevin M. Befus This study investigated the spatial distribution and seasonal variation of soil moisture during a drought year throughout a first-order drainage basin whose hillslopes have different vegetation and soil. The north-facing slope has juniper trees...
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Journal Article
Journal: PALAIOS
Published: 01 December 2016
PALAIOS (2016) 31 (12): 592–606.
..., carnivores, and hide beetles during a period of dry-decay and prolonged subaerial exposure. We propose that a drought scenario is a more plausible kill mechanism for this particular assemblage because: (1) a diminishing watering hole concentrating the local fauna explains the high taxonomic diversity; (2...
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Journal Article
Published: 01 October 2016
Vadose Zone Journal (2016) 15 (10): vzj2016.04.0036.
...) reanalysis climate data (available years 1971–1999). The 29-yr calculated median soil water content, representing the expected (normal) soil water content during the year, was used to assess drought conditions for the 2011 to 2015 water years with measured soil water contents. The soil water anomaly...
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Journal Article
Journal: Geology
Published: 01 September 2016
Geology (2016) 44 (9): 771–774.
..., vegetation cover, and saturated zone depth in Owens Valley, California (USA), to quantify the geomorphic response of a desert landscape to changes in groundwater availability. Owens Valley has a well-documented history of surface-water diversions and pumping during the A.D. 1987–1992 drought, and we studied...
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Journal Article
Published: 01 November 2015
Vadose Zone Journal (2015) 14 (11): vzj2015.02.0023.
... locations in the contiguous United States. These new soil observations will enhance our understanding of changing soil conditions for better drought monitoring. One year after full deployment of the network, a large drought occurred across most of the United States and provided an opportunity to evaluate...
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