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drought

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Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(02)
EISBN: 9780813795362
Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(05)
EISBN: 9780813795362
Series: GSA Special Papers
Published: 31 December 2019
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...
Series: GSA Special Papers
Published: 31 December 2019
DOI: 10.1130/2018.2536(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...
Journal Article
Journal: Geology
Published: 15 October 2019
Geology (2019) 47 (12): 1112–1116.
FIGURES
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.
... there is reason to defend the original research and postulations and offer some possibilities as to why the authors' basic premise for the resulting assemblage does not meet the criteria for a herd that succumbed to an extended drought and thus perishing over time. There is no problem with the concept...
Journal Article
Journal: PALAIOS
Published: 01 August 2017
PALAIOS (2017) 32 (8): 558.
... assumed as the kill mechanism for the Waco mammoths ( Fox et al. 1992 ; Bongino 2007 ; Nordt et al. 2015 ). 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...
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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Journal Article
Journal: Geology
Published: 01 July 2015
Geology (2015) 43 (7): 639–642.
... isotope data suggest that these short drought climate conditions superimposed upon local sea-level regressions opened suitable new habitats for expanding rice agriculture in the lower Yangtze Delta when subsequent humid climate regimes returned. * E-mail: hyang@bryant.edu 14 03 2015 10...
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Series: GSA Reviews in Engineering Geology
Published: 01 January 2014
DOI: 10.1130/2014.4122(08)
EISBN: 9780813758220
... with drought conditions. The owners of these wells report that they will continue to utilize them after the drought ends in order to increase the amount of acreage under cultivation. One of the goals put forth by President Obama in his strategy for Afghanistan is to promote stability and security among...
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Journal Article
Published: 01 May 2013
Vadose Zone Journal (2013) 12 (2): vzj2012.0158.
...Michael A. Palecki; Jesse E. Bell Abstract Between 2009 and 2011, the U.S. Climate Reference Network (USCRN) was augmented with soil moisture/soil temperature probes and atmospheric relative humidity instruments as part of a programmatic expansion in support of the National Integrated Drought...
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Journal Article
Journal: Geology
Published: 01 November 2012
Geology (2012) 40 (11): 1023–1026.
... of terminal Pleistocene climate variability. Herein we document lengthy terminal Pleistocene drought in the southwestern United States (USA) using δ 13 C and δ 234 U effective moisture proxy data in speleothem calcite (stalagmite FS2) from Fort Stanton Cave, New Mexico, supplemented with age data from pool...
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Journal Article
Published: 01 November 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (4): 473–486.
...W. G. Darling; D. C. Gooddy; B. L. Morris; D. W. Peach Abstract Chalk groundwater levels typically decline markedly in response to drought, and rebound strongly when the drought breaks. Chalk streams, largely groundwater-fed, are of ecological importance but little research has been conducted...
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