Satellite and buoy observations of boreal summer intraseasonal variability in the Tropical Northeast Pacific

Tropical intraseasonal variability in the eastern North Pacific during June–September of 2000–03 is analyzed using satellite and buoy observations. Quick Scatterometer ocean vector winds and the Tropical Rainfall Measuring Mission (TRMM) precipitation indicate that periods of anomalous surface weste...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Monthly weather review 2007, Vol.135 (1), p.3-19
Hauptverfasser: MALONEY, Eric D, ESBENSEN, Steven K
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 19
container_issue 1
container_start_page 3
container_title Monthly weather review
container_volume 135
creator MALONEY, Eric D
ESBENSEN, Steven K
description Tropical intraseasonal variability in the eastern North Pacific during June–September of 2000–03 is analyzed using satellite and buoy observations. Quick Scatterometer ocean vector winds and the Tropical Rainfall Measuring Mission (TRMM) precipitation indicate that periods of anomalous surface westerly flow over the east Pacific warm pool during a summertime intraseasonal oscillation (ISO) life cycle are generally associated with an enhancement of convection to the east of 120°W. An exception is a narrow band of suppressed precipitation along 8°N that is associated with negative column-integrated precipitable water anomalies and anticyclonic vorticity anomalies. Periods of surface easterly anomalies are generally associated with suppressed convection to the east of 120°W. Summertime wind jets in the Gulfs of Tehuantepec and Papagayo exhibit heightened activity during periods of ISO easterly anomalies and suppressed convection. Strong variations in east Pacific warm pool wind speed occur in association with the summertime ISO. Anomalous ISO westerly flow is generally accompanied by enhanced wind speed to the east of 120°W, while anomalous easterly flow is associated with suppressed wind speed. Intraseasonal vector wind anomalies added to the climatological flow account for the bulk of the wind speed enhancement in the warm pool during the westerly phase, while the easterly phase shows strong contributions to the negative wind speed anomaly from both intraseasonal vector wind anomalies and suppressed synoptic-scale eddy activity. An analysis using Tropical Atmosphere Ocean buoys and TRMM precipitation suggests that wind–evaporation feedback is important for supporting summertime intraseasonal convection over the east Pacific warm pool. A statistically significant correlation of 0.6 between intraseasonal latent heat flux and precipitation occurs at the 12°N, 95°W buoy. Correlations between precipitation and latent heat flux at the 10°N, 95°W and 8°N, 95°W buoys are positive (0.4), but not statistically significant. Intraseasonal latent heat flux anomalies at all buoys are primarily wind induced. Consistent with the suppressed convection there during the ISO westerly phase, a negative but not statistically significant correlation (−0.3) occurs between precipitation and latent heat flux at the 8°N, 110°W buoy.
doi_str_mv 10.1175/mwr3271.1
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_36246421</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>36246421</sourcerecordid><originalsourceid>FETCH-LOGICAL-c480t-67c13610499aed556bc1c8dac6277009a88d0ed6832e73538ce1eb49804e15153</originalsourceid><addsrcrecordid>eNqFkc9L3UAQx5dSoa_qwf9gKVTwkOdOdrPZHIu0VrBVWsVjmGwmdCXJPncT5f333egDwYunYWY-851fjB2BWAOUxenwFGRewho-sBUUuciEquRHthIiLzOhlfrEPsd4L4TQWuUr1v_FifreTcRxbHkz-y33TaTwiJPzY-S-440PhD2P8zBQ4G6cAkbC6McUfMTgsHFJYJsyfPpH_Cb4jbMp99uH5GOc-DVa1zl7wPY67CMd7uw-u_3x_ebsZ3Z5dX5x9u0ys8qIKdOlBakhTV4htUWhGwvWtGh1XpZCVGhMK6jVRuZUykIaS0CNqoxQBAUUcp8dv-hugn-YKU714KJNa-JIfo611LlK28O7YEKgEqnReyBUhTJ5uYBf3oD3fg7pUgtjwEj53PbkBbLBxxioqzfBDRi2NYh6eWP96-7P8sZ6Yb_uBDGmo3YBR-via4FRCqQB-R8W05yJ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>198183321</pqid></control><display><type>article</type><title>Satellite and buoy observations of boreal summer intraseasonal variability in the Tropical Northeast Pacific</title><source>American Meteorological Society</source><source>EZB-FREE-00999 freely available EZB journals</source><source>Alma/SFX Local Collection</source><creator>MALONEY, Eric D ; ESBENSEN, Steven K</creator><creatorcontrib>MALONEY, Eric D ; ESBENSEN, Steven K</creatorcontrib><description>Tropical intraseasonal variability in the eastern North Pacific during June–September of 2000–03 is analyzed using satellite and buoy observations. Quick Scatterometer ocean vector winds and the Tropical Rainfall Measuring Mission (TRMM) precipitation indicate that periods of anomalous surface westerly flow over the east Pacific warm pool during a summertime intraseasonal oscillation (ISO) life cycle are generally associated with an enhancement of convection to the east of 120°W. An exception is a narrow band of suppressed precipitation along 8°N that is associated with negative column-integrated precipitable water anomalies and anticyclonic vorticity anomalies. Periods of surface easterly anomalies are generally associated with suppressed convection to the east of 120°W. Summertime wind jets in the Gulfs of Tehuantepec and Papagayo exhibit heightened activity during periods of ISO easterly anomalies and suppressed convection. Strong variations in east Pacific warm pool wind speed occur in association with the summertime ISO. Anomalous ISO westerly flow is generally accompanied by enhanced wind speed to the east of 120°W, while anomalous easterly flow is associated with suppressed wind speed. Intraseasonal vector wind anomalies added to the climatological flow account for the bulk of the wind speed enhancement in the warm pool during the westerly phase, while the easterly phase shows strong contributions to the negative wind speed anomaly from both intraseasonal vector wind anomalies and suppressed synoptic-scale eddy activity. An analysis using Tropical Atmosphere Ocean buoys and TRMM precipitation suggests that wind–evaporation feedback is important for supporting summertime intraseasonal convection over the east Pacific warm pool. A statistically significant correlation of 0.6 between intraseasonal latent heat flux and precipitation occurs at the 12°N, 95°W buoy. Correlations between precipitation and latent heat flux at the 10°N, 95°W and 8°N, 95°W buoys are positive (0.4), but not statistically significant. Intraseasonal latent heat flux anomalies at all buoys are primarily wind induced. Consistent with the suppressed convection there during the ISO westerly phase, a negative but not statistically significant correlation (−0.3) occurs between precipitation and latent heat flux at the 8°N, 110°W buoy.</description><identifier>ISSN: 0027-0644</identifier><identifier>EISSN: 1520-0493</identifier><identifier>DOI: 10.1175/mwr3271.1</identifier><identifier>CODEN: MWREAB</identifier><language>eng</language><publisher>Boston, MA: American Meteorological Society</publisher><subject>Atmosphere ; Buoys ; Climatology. Bioclimatology. Climate change ; Convection ; Earth, ocean, space ; Evaporation ; Exact sciences and technology ; External geophysics ; Fluctuations ; General circulation models ; Gulfs ; Latent heat ; Marine ; Meteorology ; Physics of the oceans ; Sea-air exchange processes ; Wind ; Wind speed</subject><ispartof>Monthly weather review, 2007, Vol.135 (1), p.3-19</ispartof><rights>2007 INIST-CNRS</rights><rights>Copyright American Meteorological Society Jan 2007</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c480t-67c13610499aed556bc1c8dac6277009a88d0ed6832e73538ce1eb49804e15153</citedby><cites>FETCH-LOGICAL-c480t-67c13610499aed556bc1c8dac6277009a88d0ed6832e73538ce1eb49804e15153</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,3681,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=18441381$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>MALONEY, Eric D</creatorcontrib><creatorcontrib>ESBENSEN, Steven K</creatorcontrib><title>Satellite and buoy observations of boreal summer intraseasonal variability in the Tropical Northeast Pacific</title><title>Monthly weather review</title><description>Tropical intraseasonal variability in the eastern North Pacific during June–September of 2000–03 is analyzed using satellite and buoy observations. Quick Scatterometer ocean vector winds and the Tropical Rainfall Measuring Mission (TRMM) precipitation indicate that periods of anomalous surface westerly flow over the east Pacific warm pool during a summertime intraseasonal oscillation (ISO) life cycle are generally associated with an enhancement of convection to the east of 120°W. An exception is a narrow band of suppressed precipitation along 8°N that is associated with negative column-integrated precipitable water anomalies and anticyclonic vorticity anomalies. Periods of surface easterly anomalies are generally associated with suppressed convection to the east of 120°W. Summertime wind jets in the Gulfs of Tehuantepec and Papagayo exhibit heightened activity during periods of ISO easterly anomalies and suppressed convection. Strong variations in east Pacific warm pool wind speed occur in association with the summertime ISO. Anomalous ISO westerly flow is generally accompanied by enhanced wind speed to the east of 120°W, while anomalous easterly flow is associated with suppressed wind speed. Intraseasonal vector wind anomalies added to the climatological flow account for the bulk of the wind speed enhancement in the warm pool during the westerly phase, while the easterly phase shows strong contributions to the negative wind speed anomaly from both intraseasonal vector wind anomalies and suppressed synoptic-scale eddy activity. An analysis using Tropical Atmosphere Ocean buoys and TRMM precipitation suggests that wind–evaporation feedback is important for supporting summertime intraseasonal convection over the east Pacific warm pool. A statistically significant correlation of 0.6 between intraseasonal latent heat flux and precipitation occurs at the 12°N, 95°W buoy. Correlations between precipitation and latent heat flux at the 10°N, 95°W and 8°N, 95°W buoys are positive (0.4), but not statistically significant. Intraseasonal latent heat flux anomalies at all buoys are primarily wind induced. Consistent with the suppressed convection there during the ISO westerly phase, a negative but not statistically significant correlation (−0.3) occurs between precipitation and latent heat flux at the 8°N, 110°W buoy.</description><subject>Atmosphere</subject><subject>Buoys</subject><subject>Climatology. Bioclimatology. Climate change</subject><subject>Convection</subject><subject>Earth, ocean, space</subject><subject>Evaporation</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Fluctuations</subject><subject>General circulation models</subject><subject>Gulfs</subject><subject>Latent heat</subject><subject>Marine</subject><subject>Meteorology</subject><subject>Physics of the oceans</subject><subject>Sea-air exchange processes</subject><subject>Wind</subject><subject>Wind speed</subject><issn>0027-0644</issn><issn>1520-0493</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqFkc9L3UAQx5dSoa_qwf9gKVTwkOdOdrPZHIu0VrBVWsVjmGwmdCXJPncT5f333egDwYunYWY-851fjB2BWAOUxenwFGRewho-sBUUuciEquRHthIiLzOhlfrEPsd4L4TQWuUr1v_FifreTcRxbHkz-y33TaTwiJPzY-S-440PhD2P8zBQ4G6cAkbC6McUfMTgsHFJYJsyfPpH_Cb4jbMp99uH5GOc-DVa1zl7wPY67CMd7uw-u_3x_ebsZ3Z5dX5x9u0ys8qIKdOlBakhTV4htUWhGwvWtGh1XpZCVGhMK6jVRuZUykIaS0CNqoxQBAUUcp8dv-hugn-YKU714KJNa-JIfo611LlK28O7YEKgEqnReyBUhTJ5uYBf3oD3fg7pUgtjwEj53PbkBbLBxxioqzfBDRi2NYh6eWP96-7P8sZ6Yb_uBDGmo3YBR-via4FRCqQB-R8W05yJ</recordid><startdate>2007</startdate><enddate>2007</enddate><creator>MALONEY, Eric D</creator><creator>ESBENSEN, Steven K</creator><general>American Meteorological Society</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7TG</scope><scope>7TN</scope><scope>7UA</scope><scope>7XB</scope><scope>88F</scope><scope>88I</scope><scope>8AF</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H8D</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>L7M</scope><scope>M1Q</scope><scope>M2O</scope><scope>M2P</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>2007</creationdate><title>Satellite and buoy observations of boreal summer intraseasonal variability in the Tropical Northeast Pacific</title><author>MALONEY, Eric D ; ESBENSEN, Steven K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c480t-67c13610499aed556bc1c8dac6277009a88d0ed6832e73538ce1eb49804e15153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Atmosphere</topic><topic>Buoys</topic><topic>Climatology. Bioclimatology. Climate change</topic><topic>Convection</topic><topic>Earth, ocean, space</topic><topic>Evaporation</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Fluctuations</topic><topic>General circulation models</topic><topic>Gulfs</topic><topic>Latent heat</topic><topic>Marine</topic><topic>Meteorology</topic><topic>Physics of the oceans</topic><topic>Sea-air exchange processes</topic><topic>Wind</topic><topic>Wind speed</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MALONEY, Eric D</creatorcontrib><creatorcontrib>ESBENSEN, Steven K</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Military Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies &amp; Aerospace Collection</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>eLibrary</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric &amp; Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aerospace Database</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy &amp; Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Military Database</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Research Library (Corporate)</collection><collection>Advanced Technologies &amp; Aerospace Database</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric &amp; Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><jtitle>Monthly weather review</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MALONEY, Eric D</au><au>ESBENSEN, Steven K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Satellite and buoy observations of boreal summer intraseasonal variability in the Tropical Northeast Pacific</atitle><jtitle>Monthly weather review</jtitle><date>2007</date><risdate>2007</risdate><volume>135</volume><issue>1</issue><spage>3</spage><epage>19</epage><pages>3-19</pages><issn>0027-0644</issn><eissn>1520-0493</eissn><coden>MWREAB</coden><abstract>Tropical intraseasonal variability in the eastern North Pacific during June–September of 2000–03 is analyzed using satellite and buoy observations. Quick Scatterometer ocean vector winds and the Tropical Rainfall Measuring Mission (TRMM) precipitation indicate that periods of anomalous surface westerly flow over the east Pacific warm pool during a summertime intraseasonal oscillation (ISO) life cycle are generally associated with an enhancement of convection to the east of 120°W. An exception is a narrow band of suppressed precipitation along 8°N that is associated with negative column-integrated precipitable water anomalies and anticyclonic vorticity anomalies. Periods of surface easterly anomalies are generally associated with suppressed convection to the east of 120°W. Summertime wind jets in the Gulfs of Tehuantepec and Papagayo exhibit heightened activity during periods of ISO easterly anomalies and suppressed convection. Strong variations in east Pacific warm pool wind speed occur in association with the summertime ISO. Anomalous ISO westerly flow is generally accompanied by enhanced wind speed to the east of 120°W, while anomalous easterly flow is associated with suppressed wind speed. Intraseasonal vector wind anomalies added to the climatological flow account for the bulk of the wind speed enhancement in the warm pool during the westerly phase, while the easterly phase shows strong contributions to the negative wind speed anomaly from both intraseasonal vector wind anomalies and suppressed synoptic-scale eddy activity. An analysis using Tropical Atmosphere Ocean buoys and TRMM precipitation suggests that wind–evaporation feedback is important for supporting summertime intraseasonal convection over the east Pacific warm pool. A statistically significant correlation of 0.6 between intraseasonal latent heat flux and precipitation occurs at the 12°N, 95°W buoy. Correlations between precipitation and latent heat flux at the 10°N, 95°W and 8°N, 95°W buoys are positive (0.4), but not statistically significant. Intraseasonal latent heat flux anomalies at all buoys are primarily wind induced. Consistent with the suppressed convection there during the ISO westerly phase, a negative but not statistically significant correlation (−0.3) occurs between precipitation and latent heat flux at the 8°N, 110°W buoy.</abstract><cop>Boston, MA</cop><pub>American Meteorological Society</pub><doi>10.1175/mwr3271.1</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0027-0644
ispartof Monthly weather review, 2007, Vol.135 (1), p.3-19
issn 0027-0644
1520-0493
language eng
recordid cdi_proquest_miscellaneous_36246421
source American Meteorological Society; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Atmosphere
Buoys
Climatology. Bioclimatology. Climate change
Convection
Earth, ocean, space
Evaporation
Exact sciences and technology
External geophysics
Fluctuations
General circulation models
Gulfs
Latent heat
Marine
Meteorology
Physics of the oceans
Sea-air exchange processes
Wind
Wind speed
title Satellite and buoy observations of boreal summer intraseasonal variability in the Tropical Northeast Pacific
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T15%3A05%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Satellite%20and%20buoy%20observations%20of%20boreal%20summer%20intraseasonal%20variability%20in%20the%20Tropical%20Northeast%20Pacific&rft.jtitle=Monthly%20weather%20review&rft.au=MALONEY,%20Eric%20D&rft.date=2007&rft.volume=135&rft.issue=1&rft.spage=3&rft.epage=19&rft.pages=3-19&rft.issn=0027-0644&rft.eissn=1520-0493&rft.coden=MWREAB&rft_id=info:doi/10.1175/mwr3271.1&rft_dat=%3Cproquest_cross%3E36246421%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=198183321&rft_id=info:pmid/&rfr_iscdi=true