Refractivity in the Arctic regions
The purpose of this study is to quantify patterns or trends of electromagnetic ducting conditions in the Arctic. On average, ducts occurred 5% of the time in the summer months, and 2-3% in the spring, fall, and winter months. This is considered a low approximation due to the vertical resolution of t...
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Monterey, California. Naval Postgraduate School
2006
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ftnavalpschool:oai:calhoun.nps.edu:10945/2650 2024-06-09T07:43:45+00:00 Refractivity in the Arctic regions Stahlhut, Keir D. Guest, Peter Naval Postgraduate School (U.S.). Meteorology 2006-09 xiv, 37 p. application/pdf https://hdl.handle.net/10945/2650 unknown Monterey, California. Naval Postgraduate School 72854262 https://hdl.handle.net/10945/2650 Oceanography Meteorology Humidity Electromagnetism Thesis 2006 ftnavalpschool 2024-05-15T00:17:48Z The purpose of this study is to quantify patterns or trends of electromagnetic ducting conditions in the Arctic. On average, ducts occurred 5% of the time in the summer months, and 2-3% in the spring, fall, and winter months. This is considered a low approximation due to the vertical resolution of the sounding data. For some local regions, ducts occurred up to 20% of the time, especially in summer months. In general, local areas near coast lines or near the pole over ice/ocean had higher frequency of ducts than local areas over land mass. For summer and fall months, humidity gradients contributed most to the formation of a duct, while temperature gradients contributed to a lesser degree. For spring months, temperature gradients contributed most to the formation of the duct, while humidity gradients contributed to a lesser degree. For winter months, due to the extremely cold surface temperatures and low available humidity, temperature gradients were the dominant contribution to duct formation, and humidity gradients worked against duct formation. Approved for public release; distribution is unlimited. http://archive.org/details/refractivityinar109452650 Thesis Arctic Naval Postgraduate School: Calhoun Arctic |
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Open Polar |
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Naval Postgraduate School: Calhoun |
op_collection_id |
ftnavalpschool |
language |
unknown |
topic |
Oceanography Meteorology Humidity Electromagnetism |
spellingShingle |
Oceanography Meteorology Humidity Electromagnetism Stahlhut, Keir D. Refractivity in the Arctic regions |
topic_facet |
Oceanography Meteorology Humidity Electromagnetism |
description |
The purpose of this study is to quantify patterns or trends of electromagnetic ducting conditions in the Arctic. On average, ducts occurred 5% of the time in the summer months, and 2-3% in the spring, fall, and winter months. This is considered a low approximation due to the vertical resolution of the sounding data. For some local regions, ducts occurred up to 20% of the time, especially in summer months. In general, local areas near coast lines or near the pole over ice/ocean had higher frequency of ducts than local areas over land mass. For summer and fall months, humidity gradients contributed most to the formation of a duct, while temperature gradients contributed to a lesser degree. For spring months, temperature gradients contributed most to the formation of the duct, while humidity gradients contributed to a lesser degree. For winter months, due to the extremely cold surface temperatures and low available humidity, temperature gradients were the dominant contribution to duct formation, and humidity gradients worked against duct formation. Approved for public release; distribution is unlimited. http://archive.org/details/refractivityinar109452650 |
author2 |
Guest, Peter Naval Postgraduate School (U.S.). Meteorology |
format |
Thesis |
author |
Stahlhut, Keir D. |
author_facet |
Stahlhut, Keir D. |
author_sort |
Stahlhut, Keir D. |
title |
Refractivity in the Arctic regions |
title_short |
Refractivity in the Arctic regions |
title_full |
Refractivity in the Arctic regions |
title_fullStr |
Refractivity in the Arctic regions |
title_full_unstemmed |
Refractivity in the Arctic regions |
title_sort |
refractivity in the arctic regions |
publisher |
Monterey, California. Naval Postgraduate School |
publishDate |
2006 |
url |
https://hdl.handle.net/10945/2650 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
72854262 https://hdl.handle.net/10945/2650 |
_version_ |
1801372615799996416 |