Open Access. Powered by Scholars. Published by Universities.®

International and Area Studies Commons™

Open Access. Powered by Scholars. Published by Universities.®

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Articles 1021 - 1024 of 1024

Full-Text Articles in International and Area Studies

Drought And Precipitation Fluctuations In The Great Plains During The Late Nineteenth Century, Cary J. Mock Feb 1991

Drought And Precipitation Fluctuations In The Great Plains During The Late Nineteenth Century, Cary J. Mock

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Monthly precipitation data in the Great Plains from the late nineteenth century (1851–1890) were compared with modem analogs. Seasonal precipitation changes were identified since 1858–1877, depending on the amount of data available, and additional droughts were inferred back to 1851. Regional droughts did not clearly fit any cycle. Precipitation during fall and winter was less than 1951–1980 averages during most of the late nineteenth century. Wetter than modern average springs and summers occurred in the mid-1870s to the mid-1880s. Relationships of these conditions to changes in mid-tropospheric circulation are suggested. Results from this study can be used for verification of …


Hydroclimatic Variability On The Great Plains, Michael J. Keables Feb 1991

Hydroclimatic Variability On The Great Plains, Michael J. Keables

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

This study identifies the spatial variability of the hydroclimatology of the Great Plains. Spatial associations of monthly midtropospheric circulation anomalies, total precipitation, and mean stream discharge are identified using an unrotated principal component analysis. Three hydroclimatic associations, representing synoptic circulation features and associated precipitation and stream discharge patterns, identify specific circulation anomalies and corresponding spatial pattems of surface hydrology in the northern, central, and southern Great Plains. Results indicate that nearly 47% of the hydrologic (precipitation and stream discharge) variability during summer is attributed to synoptic-scale midtropospheric circulation anomalies, with sub-synoptic convectional processes accounting for approximately 42% of the hydrologic …


The Geologic Record Of Wind Erosion, Eolian Deposition, And Aridity On The Southern High Plains, Vance T. Holliday Feb 1991

The Geologic Record Of Wind Erosion, Eolian Deposition, And Aridity On The Southern High Plains, Vance T. Holliday

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Evidence of wind erosion, accumulation of airborne sediments, and drought is preserved on the Southern High Plains. Eolian deposition in the Holocene concentrated between 6000 and 4500 years ago. The Blackwater Draw Formation indicates episodic wind erosion and deposition in the past 1.6 million years. The Ogallala Formation suggests a vast, sandy eolian plain accumulated episodically between 4 and 11 million years. Warmer and drier conditions predicted for the region in a globally-warmer climate will thus be superimposed upon prevailing characteristics of wind and relative aridity that have dominated recent geologic time.


Great Plains Research: Editorial Matter, Volume 1, Number 1 Feb 1991

Great Plains Research: Editorial Matter, Volume 1, Number 1

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Includes:

Cover
Publisher Information (The Center for Great Plains Studies)
Copyright page
Table of Contents
Editor’s Note
News and Notes
Calls for Papers (2)
Advertisements (2)
Instructions to Authors