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Evaluating the Relationship Between ...

Hernandez, Gabriel.

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Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin./
Author:	Hernandez, Gabriel.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
Description:	87 p.
Notes:	Source: Masters Abstracts International, Volume: 84-11.
Contained By:	Masters Abstracts International84-11.
Subject:	Environmental geology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30421681
ISBN:	9798379541170

Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.
Hernandez, Gabriel.

Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 87 p.

Source: Masters Abstracts International, Volume: 84-11.

Thesis (M.S.)--Mississippi State University, 2023.

This item must not be sold to any third party vendors.

Methane seeps are a transport pathway for carbon from seafloor sediments to the marine environment with important implications for global biogeochemical cycling. Accordingly, there is substantial interest in better understanding the processes that control seep location and predicting the distribution of seeps with existing seafloor datasets. Visual evaluation of methane seeps, in multibeam sonar water column data, suggests a spatial relationship between seeps and specific seafloor morphologic features such as ridge crests. In this thesis, seafloor geomorphology at 1996 seep detection sites on the US Atlantic margin was quantitatively characterized by geomorphologic phonotype, bathymetric position index, slope, rugosity, and aspect to evaluate the relationship between seafloor geomorphology and seep location. Results indicate a spatial association between methane seeps and localized bathymetric highs. Additionally, maximum entropy spatial distribution analysis indicates that seafloor geomorphology is partially predictive of seep location and that existing bathymetric datasets may be useful in identifying undiscovered seeps. 

ISBN: 9798379541170Subjects--Topical Terms:

535218
Environmental geology.
Subjects--Index Terms:

Bathymetric position index

Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.
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100 1 $a Hernandez, Gabriel. $3 1258291
245 1 0 $a Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 87 p.
500 $a Source: Masters Abstracts International, Volume: 84-11.
500 $a Advisor: Skarke, Adam.
502 $a Thesis (M.S.)--Mississippi State University, 2023.
506 $a This item must not be sold to any third party vendors.
520 $a Methane seeps are a transport pathway for carbon from seafloor sediments to the marine environment with important implications for global biogeochemical cycling. Accordingly, there is substantial interest in better understanding the processes that control seep location and predicting the distribution of seeps with existing seafloor datasets. Visual evaluation of methane seeps, in multibeam sonar water column data, suggests a spatial relationship between seeps and specific seafloor morphologic features such as ridge crests. In this thesis, seafloor geomorphology at 1996 seep detection sites on the US Atlantic margin was quantitatively characterized by geomorphologic phonotype, bathymetric position index, slope, rugosity, and aspect to evaluate the relationship between seafloor geomorphology and seep location. Results indicate a spatial association between methane seeps and localized bathymetric highs. Additionally, maximum entropy spatial distribution analysis indicates that seafloor geomorphology is partially predictive of seep location and that existing bathymetric datasets may be useful in identifying undiscovered seeps. 
590 $a School code: 0132.
650 4 $a Environmental geology. $3 535218
650 4 $a Environmental science. $3 677245
650 4 $a Marine geology. $3 3173821
650 4 $a Geomorphology. $3 542703
653 $a Bathymetric position index
653 $a Marine geology
653 $a Maximum entropy modeling
653 $a Methane hydrate
653 $a Methane seep
653 $a Atlantic margin
690 $a 0407
690 $a 0768
690 $a 0556
690 $a 0484
710 2 $a Mississippi State University. $b Department of Geosciences. $3 3762431
773 0 $t Masters Abstracts International $g 84-11.
790 $a 0132
791 $a M.S.
792 $a 2023
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30421681