Goes, Joaquim I,Thoppil, Prasad G,do R Gomes, Helga,Fasullo, John T
Warming of the Eurasian landmass is making the Arabian Sea more productive Journal Article
In: Science, vol. 308, no. 379, pp. 545-547, 2005, ISBN: 0036-8075.
Abstract | BibTeX | Tags: Arabian Sea, Climate change, monsoon, Oman, productivity, Upwelling
@article{,
title = {Warming of the Eurasian landmass is making the Arabian Sea more productive},
author = {Goes, Joaquim I,Thoppil, Prasad G,do R Gomes, Helga,Fasullo, John T},
issn = {0036-8075},
year = {2005},
date = {2005-01-01},
journal = {Science},
volume = {308},
number = {379},
pages = {545-547},
abstract = {The recent trend of declining winter and spring snow cover over Eurasia is
causing a land-ocean thermal gradient that is particularly favorable to stronger
southwest (summer) monsoon winds. Since 1997, sea surface winds have been
strengthening over the western Arabian Sea. This escalation in the intensity of
summer monsoon winds, accompanied by enhanced upwelling and an increase
of more than 350% in average summertime phytoplankton biomass along the
coast and over 300% offshore, raises the possibility that the current warming
trend of the Eurasian landmass is making the Arabian Sea more productive.},
keywords = {Arabian Sea, Climate change, monsoon, Oman, productivity, Upwelling},
pubstate = {published},
tppubtype = {article}
}
The recent trend of declining winter and spring snow cover over Eurasia is
causing a land-ocean thermal gradient that is particularly favorable to stronger
southwest (summer) monsoon winds. Since 1997, sea surface winds have been
strengthening over the western Arabian Sea. This escalation in the intensity of
summer monsoon winds, accompanied by enhanced upwelling and an increase
of more than 350% in average summertime phytoplankton biomass along the
coast and over 300% offshore, raises the possibility that the current warming
trend of the Eurasian landmass is making the Arabian Sea more productive.
causing a land-ocean thermal gradient that is particularly favorable to stronger
southwest (summer) monsoon winds. Since 1997, sea surface winds have been
strengthening over the western Arabian Sea. This escalation in the intensity of
summer monsoon winds, accompanied by enhanced upwelling and an increase
of more than 350% in average summertime phytoplankton biomass along the
coast and over 300% offshore, raises the possibility that the current warming
trend of the Eurasian landmass is making the Arabian Sea more productive.
Bruce, John G,Johnson, Donald R,Kindle, John C
Evidence for eddy formation in the eastern Arabian Sea during the northeast monsoon Journal Article
In: Journal of Geophysical Research: Oceans, vol. 99, no. 59, pp. 7651-7664, 1994, ISBN: 2156-2202.
Abstract | BibTeX | Tags: Arabian Sea, Eddy, India, Laccadive Islands, monsoon, oceanography
@article{,
title = {Evidence for eddy formation in the eastern Arabian Sea during the northeast monsoon},
author = {Bruce, John G,Johnson, Donald R,Kindle, John C},
issn = {2156-2202},
year = {1994},
date = {1994-01-01},
journal = {Journal of Geophysical Research: Oceans},
volume = {99},
number = {59},
pages = {7651-7664},
abstract = {The seasonal formation of a large (500-800 km diameter) anticyclonic eddy
in the upper 300-400 rn of the eastern Arabian Sea during the northeast monsoon
period (December-April) is indicated from hydrographic and satellite altimetry sea level
observations, as well as from numerical model experiments. The center of the eddy
circulation is approximately 10øN, 70øE, just to the west of the north-south Laccadive
Island chain. In this paper the eddy is called the Laccadive High (LH). In some ways
it is a mirrorlike counterpart to the Great Whirl, which develops during the southwest
monsoon off the Somali coast (western Arabian Sea). The LH occurs at the same
latitude but on the opposite side of the basin during the reversed monsoon. It is
different from the Great Whirl, however, in its formation process, its intensity, and its
decay. The hydrographic data obtained from surveys all during a single season give
sufficiently close station spacing to allow reasonable contouring of the geopotential
surfaces and of the properties within and around the LH region with minimum time
aliasing. The Geosat altimeter record extends over 4 years, during which the seasonal
variability of the LH indicates a dynamic relief of approximately 15-20 cm, which is in
good agreement with the hydrographic observations. The altimetry time series also
suggests a westward translation of the LH by January with a subsequent dissipation in
midbasin. The model used is a wind-forced three-layer primitive equation model which
depicts a LH in agreement with the timing, position, and amplitude of both the
hydrographic and altimetric measurements. The numerical simulation includes a
passive tracer located in the western Bay of Bengal; the western advection of the
tracer around the south coasts of Sri Lanka and India in December and January is
consistent with the appearance of low-salinity water observed to extend into the
Arabian Sea during this period. The modeling studies suggest that both local and
remote forcing are important in formation of the LH.},
keywords = {Arabian Sea, Eddy, India, Laccadive Islands, monsoon, oceanography},
pubstate = {published},
tppubtype = {article}
}
The seasonal formation of a large (500-800 km diameter) anticyclonic eddy
in the upper 300-400 rn of the eastern Arabian Sea during the northeast monsoon
period (December-April) is indicated from hydrographic and satellite altimetry sea level
observations, as well as from numerical model experiments. The center of the eddy
circulation is approximately 10øN, 70øE, just to the west of the north-south Laccadive
Island chain. In this paper the eddy is called the Laccadive High (LH). In some ways
it is a mirrorlike counterpart to the Great Whirl, which develops during the southwest
monsoon off the Somali coast (western Arabian Sea). The LH occurs at the same
latitude but on the opposite side of the basin during the reversed monsoon. It is
different from the Great Whirl, however, in its formation process, its intensity, and its
decay. The hydrographic data obtained from surveys all during a single season give
sufficiently close station spacing to allow reasonable contouring of the geopotential
surfaces and of the properties within and around the LH region with minimum time
aliasing. The Geosat altimeter record extends over 4 years, during which the seasonal
variability of the LH indicates a dynamic relief of approximately 15-20 cm, which is in
good agreement with the hydrographic observations. The altimetry time series also
suggests a westward translation of the LH by January with a subsequent dissipation in
midbasin. The model used is a wind-forced three-layer primitive equation model which
depicts a LH in agreement with the timing, position, and amplitude of both the
hydrographic and altimetric measurements. The numerical simulation includes a
passive tracer located in the western Bay of Bengal; the western advection of the
tracer around the south coasts of Sri Lanka and India in December and January is
consistent with the appearance of low-salinity water observed to extend into the
Arabian Sea during this period. The modeling studies suggest that both local and
remote forcing are important in formation of the LH.
in the upper 300-400 rn of the eastern Arabian Sea during the northeast monsoon
period (December-April) is indicated from hydrographic and satellite altimetry sea level
observations, as well as from numerical model experiments. The center of the eddy
circulation is approximately 10øN, 70øE, just to the west of the north-south Laccadive
Island chain. In this paper the eddy is called the Laccadive High (LH). In some ways
it is a mirrorlike counterpart to the Great Whirl, which develops during the southwest
monsoon off the Somali coast (western Arabian Sea). The LH occurs at the same
latitude but on the opposite side of the basin during the reversed monsoon. It is
different from the Great Whirl, however, in its formation process, its intensity, and its
decay. The hydrographic data obtained from surveys all during a single season give
sufficiently close station spacing to allow reasonable contouring of the geopotential
surfaces and of the properties within and around the LH region with minimum time
aliasing. The Geosat altimeter record extends over 4 years, during which the seasonal
variability of the LH indicates a dynamic relief of approximately 15-20 cm, which is in
good agreement with the hydrographic observations. The altimetry time series also
suggests a westward translation of the LH by January with a subsequent dissipation in
midbasin. The model used is a wind-forced three-layer primitive equation model which
depicts a LH in agreement with the timing, position, and amplitude of both the
hydrographic and altimetric measurements. The numerical simulation includes a
passive tracer located in the western Bay of Bengal; the western advection of the
tracer around the south coasts of Sri Lanka and India in December and January is
consistent with the appearance of low-salinity water observed to extend into the
Arabian Sea during this period. The modeling studies suggest that both local and
remote forcing are important in formation of the LH.