![](/images/graphics-bg.png)
The Effect of the Dry Line and Convective Initiation on Drought Evolution over Oklahoma during the 2011 Drought
Joint Authors
Otkin, Jason A.
Flanagan, Paul X.
Illston, Bradley G.
Basara, Jeffrey B.
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-04
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Observations from the Oklahoma Mesonet and high resolution Weather Research and Forecasting model simulations were used to evaluate the effect that the dry line and large-scale atmospheric patterns had on drought evolution during 2011.
Mesonet observations showed that a “dry” and “wet” pattern developed across Oklahoma due to anomalous atmospheric patterns.
The location of the dry line varied due to this “dry” and “wet” pattern, with the average dry line location around 1.5° longitude further to the east than climatology.
Model simulations were used to further quantify the impact of variable surface conditions on dry line evolution and convective initiation (CI) during April and May 2011.
Specifically, soil moisture conditions were altered to depict “wet” and “dry” conditions across the domain by replacing the soil moisture values by each soil category’s porosity or wilting point value.
Overall, the strength of the dry line boundary, its position, and subsequent CI were dependent on the modification of soil moisture.
The simulations demonstrated that modifying soil moisture impacted the nature of the dry line and showed that soil moisture conditions during the first half of the warm season modified the dry line pattern and influenced the evolution and perpetuation of drought over Oklahoma.
American Psychological Association (APA)
Flanagan, Paul X.& Basara, Jeffrey B.& Illston, Bradley G.& Otkin, Jason A.. 2017. The Effect of the Dry Line and Convective Initiation on Drought Evolution over Oklahoma during the 2011 Drought. Advances in Meteorology،Vol. 2017, no. 2017, pp.1-16.
https://search.emarefa.net/detail/BIM-1122939
Modern Language Association (MLA)
Flanagan, Paul X.…[et al.]. The Effect of the Dry Line and Convective Initiation on Drought Evolution over Oklahoma during the 2011 Drought. Advances in Meteorology No. 2017 (2017), pp.1-16.
https://search.emarefa.net/detail/BIM-1122939
American Medical Association (AMA)
Flanagan, Paul X.& Basara, Jeffrey B.& Illston, Bradley G.& Otkin, Jason A.. The Effect of the Dry Line and Convective Initiation on Drought Evolution over Oklahoma during the 2011 Drought. Advances in Meteorology. 2017. Vol. 2017, no. 2017, pp.1-16.
https://search.emarefa.net/detail/BIM-1122939
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122939