東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

The Maintenance of High Primary Prod...

Peabody, Ryan James.

Linked to FindBook

Google Book

Amazon

博客來

The Maintenance of High Primary Production in the Absence of Ekman Upwelling: The Supply of Nutrients to the Intergyre North Atlantic.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The Maintenance of High Primary Production in the Absence of Ekman Upwelling: The Supply of Nutrients to the Intergyre North Atlantic./
Author:	Peabody, Ryan James.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	56 p.
Notes:	Source: Masters Abstracts International, Volume: 57-05.
Contained By:	Masters Abstracts International57-05(E).
Subject:	Physical oceanography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10750429
ISBN:	9780355953732

The Maintenance of High Primary Production in the Absence of Ekman Upwelling: The Supply of Nutrients to the Intergyre North Atlantic.
Peabody, Ryan James.

The Maintenance of High Primary Production in the Absence of Ekman Upwelling: The Supply of Nutrients to the Intergyre North Atlantic. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 56 p.

Source: Masters Abstracts International, Volume: 57-05.

Thesis (M.S.)--Duke University, 2018.

Ekman suction and pumping are often invoked to explain the observed difference in primary production and chlorophyll a between the North Atlantic subpolar and subtropical gyres. Between the gyres, the intergyre region can be loosely defined by its lack of a strong Ekman suction or pumping of nutrients. Despite the lack of a strong Ekman supply of nutrients, the mean seasonal cycle in chlorophyll a in the intergyre is remarkably similar to that seen in the subpolar gyre. In this thesis, we present research on mechanisms for nutrient supply to the intergyre that might support its high production. Using biogeochemical and physical reanalysis ocean data products, a nutrient budget is constructed for a region in the eastern North Atlantic, within the intergyre. Analysis of this budget shows that the seasonal entrainment flux, resultant from the movement of the mixed layer across vertical nutrient gradients, is responsible for the majority of the nutrient supply to the region. Hydrographic ocean data and particle trajectories run in a numerical model are then used to show that the waters seasonally entrained into the intergyre mixed layer likely originate in the Gulf Stream, linking nutrient supply in the North Atlantic intergyre to high downstream nutrient fluxes observed in the Gulf Stream.

ISBN: 9780355953732Subjects--Topical Terms:

3168433
Physical oceanography.

The Maintenance of High Primary Production in the Absence of Ekman Upwelling: The Supply of Nutrients to the Intergyre North Atlantic.
LDR:02271nmm a2200301 4500 001 2163087
005 20181022104652.5
008 190424s2018 ||||||||||||||||| ||eng d
020 $a 9780355953732
035 $a (MiAaPQ)AAI10750429
035 $a (MiAaPQ)duke:14606
035 $a AAI10750429
040 $a MiAaPQ $c MiAaPQ
100 1 $a Peabody, Ryan James. $3 3351099
245 1 4 $a The Maintenance of High Primary Production in the Absence of Ekman Upwelling: The Supply of Nutrients to the Intergyre North Atlantic.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 56 p.
500 $a Source: Masters Abstracts International, Volume: 57-05.
500 $a Adviser: Susan Lozier.
502 $a Thesis (M.S.)--Duke University, 2018.
520 $a Ekman suction and pumping are often invoked to explain the observed difference in primary production and chlorophyll a between the North Atlantic subpolar and subtropical gyres. Between the gyres, the intergyre region can be loosely defined by its lack of a strong Ekman suction or pumping of nutrients. Despite the lack of a strong Ekman supply of nutrients, the mean seasonal cycle in chlorophyll a in the intergyre is remarkably similar to that seen in the subpolar gyre. In this thesis, we present research on mechanisms for nutrient supply to the intergyre that might support its high production. Using biogeochemical and physical reanalysis ocean data products, a nutrient budget is constructed for a region in the eastern North Atlantic, within the intergyre. Analysis of this budget shows that the seasonal entrainment flux, resultant from the movement of the mixed layer across vertical nutrient gradients, is responsible for the majority of the nutrient supply to the region. Hydrographic ocean data and particle trajectories run in a numerical model are then used to show that the waters seasonally entrained into the intergyre mixed layer likely originate in the Gulf Stream, linking nutrient supply in the North Atlantic intergyre to high downstream nutrient fluxes observed in the Gulf Stream.
590 $a School code: 0066.
650 4 $a Physical oceanography. $3 3168433
650 4 $a Biological oceanography. $3 2122748
690 $a 0415
690 $a 0416
710 2 $a Duke University. $b Earth and Ocean Sciences. $3 3194646
773 0 $t Masters Abstracts International $g 57-05(E).
790 $a 0066
791 $a M.S.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10750429