Variability of the Thermohaline Field in a Large Tropical, Well-Mixed Estuary: the Influence of an Extreme Draught Event
Todos os Santos Bay (BTS) is one of eleven large estuaries along the semi-arid Brazilian northeast coast. It is a positive, well-mixed estuary undergoing progressive fresh water limitations due to natural climatic processes and direct human intervention to the fluvial hydrology. This study investiga...
Gespeichert in:
| Veröffentlicht in: | Estuaries and coasts 2019-12, Vol.42 (8), p.2020-2037 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 2037 |
|---|---|
| container_issue | 8 |
| container_start_page | 2020 |
| container_title | Estuaries and coasts |
| container_volume | 42 |
| creator | Lessa, Guilherme C. Mariani, Rafael Fonseca, Lucas |
| description | Todos os Santos Bay (BTS) is one of eleven large estuaries along the semi-arid Brazilian northeast coast. It is a positive, well-mixed estuary undergoing progressive fresh water limitations due to natural climatic processes and direct human intervention to the fluvial hydrology. This study investigates the variability of the thermohaline field along three water years (2013–2015) that encompassed close-to-normal hydric conditions and the most severe regional drought in the historical record. Moored temperature and conductivity sensors, monthly CTD profiling along the bay axis, and historical records of meteorology and river discharges showed that the seasonal oscillations of the thermohaline field are 2- to 3-fold larger than higher, tidal frequency oscillations, and that BTS becomes a seasonally negative, hypersaline estuary during a drought. Also, a density plug and inverse estuarine circulation can arise with a delay of the rainy season. Negative ecological impacts have been associated with such hydrographic conditions. Long-term climatic trends and future climatic projections indicate that the BTS and its catchment area may undergo more frequent and acute droughts, suggesting that the bay may often become a seasonally negative estuary. |
| doi_str_mv | 10.1007/s12237-019-00641-y |
| format | Article |
| fullrecord | <record><control><sourceid>jstor_proqu</sourceid><recordid>TN_cdi_proquest_journals_2315805401</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><jstor_id>48703276</jstor_id><sourcerecordid>48703276</sourcerecordid><originalsourceid>FETCH-LOGICAL-c341t-6b581d16ccab2719d4314bca6ca2a0fb86f3fe2a3b3cb5e80fc30d17acea3ce53</originalsourceid><addsrcrecordid>eNp9kE9Lw0AQxRdRsFa_gCAseHV1Zv8k6VGKVaHFS9Xjstls2i1pUndTMN_eaKTePM3AvN97wyPkEuEWAdK7iJyLlAFOGEAikXVHZIRKTRhPBR4fdi5OyVmMGwCpFMgRWbyZ4E3uK992tClpu3Z0uXZh26xN5WtHZ95VBfU1NXRuwqq_hmbnralu6LurKrbwn66gD7Hdm9Cdk5PSVNFd_M4xeZ09LKdPbP7y-Dy9nzMrJLYsyVWGBSbWmpynOCmkQJlbk1jDDZR5lpSidNyIXNhcuQxKK6DA1FhnhHVKjMn14LsLzcfexVZvmn2o-0jNBaoMlATsVXxQ2dDEGFypd8Fv-zc1gv6uTQ-16b42_VOb7npIDFDsxfXKhT_rf6mrgdrEtgmHHJmlIHiaiC9GMHpN</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2315805401</pqid></control><display><type>article</type><title>Variability of the Thermohaline Field in a Large Tropical, Well-Mixed Estuary: the Influence of an Extreme Draught Event</title><source>Jstor Complete Legacy</source><source>Springer Online Journals Complete</source><creator>Lessa, Guilherme C. ; Mariani, Rafael ; Fonseca, Lucas</creator><creatorcontrib>Lessa, Guilherme C. ; Mariani, Rafael ; Fonseca, Lucas</creatorcontrib><description>Todos os Santos Bay (BTS) is one of eleven large estuaries along the semi-arid Brazilian northeast coast. It is a positive, well-mixed estuary undergoing progressive fresh water limitations due to natural climatic processes and direct human intervention to the fluvial hydrology. This study investigates the variability of the thermohaline field along three water years (2013–2015) that encompassed close-to-normal hydric conditions and the most severe regional drought in the historical record. Moored temperature and conductivity sensors, monthly CTD profiling along the bay axis, and historical records of meteorology and river discharges showed that the seasonal oscillations of the thermohaline field are 2- to 3-fold larger than higher, tidal frequency oscillations, and that BTS becomes a seasonally negative, hypersaline estuary during a drought. Also, a density plug and inverse estuarine circulation can arise with a delay of the rainy season. Negative ecological impacts have been associated with such hydrographic conditions. Long-term climatic trends and future climatic projections indicate that the BTS and its catchment area may undergo more frequent and acute droughts, suggesting that the bay may often become a seasonally negative estuary.</description><identifier>ISSN: 1559-2723</identifier><identifier>EISSN: 1559-2731</identifier><identifier>DOI: 10.1007/s12237-019-00641-y</identifier><language>eng</language><publisher>New York: Springer Science + Business Media</publisher><subject>Archives & records ; Aridity ; Brackishwater environment ; Catchment area ; Catchment areas ; Coastal Sciences ; Conductivity sensors ; Drought ; Earth and Environmental Science ; Ecology ; Environment ; Environmental Management ; Estuaries ; Estuarine dynamics ; Fresh water ; Freshwater ; Freshwater & Marine Ecology ; Hydrology ; Inland water environment ; Meteorology ; ORIGINAL PAPERS ; Oscillations ; Rainy season ; Rivers ; Tidal oscillations ; Tropical climate ; Variability ; Water and Health ; Wet season</subject><ispartof>Estuaries and coasts, 2019-12, Vol.42 (8), p.2020-2037</ispartof><rights>Coastal and Estuarine Research Federation 2019</rights><rights>Estuaries and Coasts is a copyright of Springer, (2019). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c341t-6b581d16ccab2719d4314bca6ca2a0fb86f3fe2a3b3cb5e80fc30d17acea3ce53</citedby><cites>FETCH-LOGICAL-c341t-6b581d16ccab2719d4314bca6ca2a0fb86f3fe2a3b3cb5e80fc30d17acea3ce53</cites><orcidid>0000-0002-0928-2441</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/48703276$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/48703276$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,41464,42533,51294,57992,58225</link.rule.ids></links><search><creatorcontrib>Lessa, Guilherme C.</creatorcontrib><creatorcontrib>Mariani, Rafael</creatorcontrib><creatorcontrib>Fonseca, Lucas</creatorcontrib><title>Variability of the Thermohaline Field in a Large Tropical, Well-Mixed Estuary: the Influence of an Extreme Draught Event</title><title>Estuaries and coasts</title><addtitle>Estuaries and Coasts</addtitle><description>Todos os Santos Bay (BTS) is one of eleven large estuaries along the semi-arid Brazilian northeast coast. It is a positive, well-mixed estuary undergoing progressive fresh water limitations due to natural climatic processes and direct human intervention to the fluvial hydrology. This study investigates the variability of the thermohaline field along three water years (2013–2015) that encompassed close-to-normal hydric conditions and the most severe regional drought in the historical record. Moored temperature and conductivity sensors, monthly CTD profiling along the bay axis, and historical records of meteorology and river discharges showed that the seasonal oscillations of the thermohaline field are 2- to 3-fold larger than higher, tidal frequency oscillations, and that BTS becomes a seasonally negative, hypersaline estuary during a drought. Also, a density plug and inverse estuarine circulation can arise with a delay of the rainy season. Negative ecological impacts have been associated with such hydrographic conditions. Long-term climatic trends and future climatic projections indicate that the BTS and its catchment area may undergo more frequent and acute droughts, suggesting that the bay may often become a seasonally negative estuary.</description><subject>Archives & records</subject><subject>Aridity</subject><subject>Brackishwater environment</subject><subject>Catchment area</subject><subject>Catchment areas</subject><subject>Coastal Sciences</subject><subject>Conductivity sensors</subject><subject>Drought</subject><subject>Earth and Environmental Science</subject><subject>Ecology</subject><subject>Environment</subject><subject>Environmental Management</subject><subject>Estuaries</subject><subject>Estuarine dynamics</subject><subject>Fresh water</subject><subject>Freshwater</subject><subject>Freshwater & Marine Ecology</subject><subject>Hydrology</subject><subject>Inland water environment</subject><subject>Meteorology</subject><subject>ORIGINAL PAPERS</subject><subject>Oscillations</subject><subject>Rainy season</subject><subject>Rivers</subject><subject>Tidal oscillations</subject><subject>Tropical climate</subject><subject>Variability</subject><subject>Water and Health</subject><subject>Wet season</subject><issn>1559-2723</issn><issn>1559-2731</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp9kE9Lw0AQxRdRsFa_gCAseHV1Zv8k6VGKVaHFS9Xjstls2i1pUndTMN_eaKTePM3AvN97wyPkEuEWAdK7iJyLlAFOGEAikXVHZIRKTRhPBR4fdi5OyVmMGwCpFMgRWbyZ4E3uK992tClpu3Z0uXZh26xN5WtHZ95VBfU1NXRuwqq_hmbnralu6LurKrbwn66gD7Hdm9Cdk5PSVNFd_M4xeZ09LKdPbP7y-Dy9nzMrJLYsyVWGBSbWmpynOCmkQJlbk1jDDZR5lpSidNyIXNhcuQxKK6DA1FhnhHVKjMn14LsLzcfexVZvmn2o-0jNBaoMlATsVXxQ2dDEGFypd8Fv-zc1gv6uTQ-16b42_VOb7npIDFDsxfXKhT_rf6mrgdrEtgmHHJmlIHiaiC9GMHpN</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Lessa, Guilherme C.</creator><creator>Mariani, Rafael</creator><creator>Fonseca, Lucas</creator><general>Springer Science + Business Media</general><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7SN</scope><scope>7TN</scope><scope>7U7</scope><scope>7UA</scope><scope>7XB</scope><scope>8AO</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</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>H95</scope><scope>H96</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>M2O</scope><scope>M7N</scope><scope>MBDVC</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><orcidid>https://orcid.org/0000-0002-0928-2441</orcidid></search><sort><creationdate>20191201</creationdate><title>Variability of the Thermohaline Field in a Large Tropical, Well-Mixed Estuary</title><author>Lessa, Guilherme C. ; Mariani, Rafael ; Fonseca, Lucas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c341t-6b581d16ccab2719d4314bca6ca2a0fb86f3fe2a3b3cb5e80fc30d17acea3ce53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Archives & records</topic><topic>Aridity</topic><topic>Brackishwater environment</topic><topic>Catchment area</topic><topic>Catchment areas</topic><topic>Coastal Sciences</topic><topic>Conductivity sensors</topic><topic>Drought</topic><topic>Earth and Environmental Science</topic><topic>Ecology</topic><topic>Environment</topic><topic>Environmental Management</topic><topic>Estuaries</topic><topic>Estuarine dynamics</topic><topic>Fresh water</topic><topic>Freshwater</topic><topic>Freshwater & Marine Ecology</topic><topic>Hydrology</topic><topic>Inland water environment</topic><topic>Meteorology</topic><topic>ORIGINAL PAPERS</topic><topic>Oscillations</topic><topic>Rainy season</topic><topic>Rivers</topic><topic>Tidal oscillations</topic><topic>Tropical climate</topic><topic>Variability</topic><topic>Water and Health</topic><topic>Wet season</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lessa, Guilherme C.</creatorcontrib><creatorcontrib>Mariani, Rafael</creatorcontrib><creatorcontrib>Fonseca, Lucas</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest Pharma 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 One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & 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>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Research Library</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Research Library (Corporate)</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & 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><jtitle>Estuaries and coasts</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lessa, Guilherme C.</au><au>Mariani, Rafael</au><au>Fonseca, Lucas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variability of the Thermohaline Field in a Large Tropical, Well-Mixed Estuary: the Influence of an Extreme Draught Event</atitle><jtitle>Estuaries and coasts</jtitle><stitle>Estuaries and Coasts</stitle><date>2019-12-01</date><risdate>2019</risdate><volume>42</volume><issue>8</issue><spage>2020</spage><epage>2037</epage><pages>2020-2037</pages><issn>1559-2723</issn><eissn>1559-2731</eissn><abstract>Todos os Santos Bay (BTS) is one of eleven large estuaries along the semi-arid Brazilian northeast coast. It is a positive, well-mixed estuary undergoing progressive fresh water limitations due to natural climatic processes and direct human intervention to the fluvial hydrology. This study investigates the variability of the thermohaline field along three water years (2013–2015) that encompassed close-to-normal hydric conditions and the most severe regional drought in the historical record. Moored temperature and conductivity sensors, monthly CTD profiling along the bay axis, and historical records of meteorology and river discharges showed that the seasonal oscillations of the thermohaline field are 2- to 3-fold larger than higher, tidal frequency oscillations, and that BTS becomes a seasonally negative, hypersaline estuary during a drought. Also, a density plug and inverse estuarine circulation can arise with a delay of the rainy season. Negative ecological impacts have been associated with such hydrographic conditions. Long-term climatic trends and future climatic projections indicate that the BTS and its catchment area may undergo more frequent and acute droughts, suggesting that the bay may often become a seasonally negative estuary.</abstract><cop>New York</cop><pub>Springer Science + Business Media</pub><doi>10.1007/s12237-019-00641-y</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0002-0928-2441</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1559-2723 |
| ispartof | Estuaries and coasts, 2019-12, Vol.42 (8), p.2020-2037 |
| issn | 1559-2723 1559-2731 |
| language | eng |
| recordid | cdi_proquest_journals_2315805401 |
| source | Jstor Complete Legacy; Springer Online Journals Complete |
| subjects | Archives & records Aridity Brackishwater environment Catchment area Catchment areas Coastal Sciences Conductivity sensors Drought Earth and Environmental Science Ecology Environment Environmental Management Estuaries Estuarine dynamics Fresh water Freshwater Freshwater & Marine Ecology Hydrology Inland water environment Meteorology ORIGINAL PAPERS Oscillations Rainy season Rivers Tidal oscillations Tropical climate Variability Water and Health Wet season |
| title | Variability of the Thermohaline Field in a Large Tropical, Well-Mixed Estuary: the Influence of an Extreme Draught Event |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-15T01%3A41%3A51IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Variability%20of%20the%20Thermohaline%20Field%20in%20a%20Large%20Tropical,%20Well-Mixed%20Estuary:%20the%20Influence%20of%20an%20Extreme%20Draught%20Event&rft.jtitle=Estuaries%20and%20coasts&rft.au=Lessa,%20Guilherme%20C.&rft.date=2019-12-01&rft.volume=42&rft.issue=8&rft.spage=2020&rft.epage=2037&rft.pages=2020-2037&rft.issn=1559-2723&rft.eissn=1559-2731&rft_id=info:doi/10.1007/s12237-019-00641-y&rft_dat=%3Cjstor_proqu%3E48703276%3C/jstor_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2315805401&rft_id=info:pmid/&rft_jstor_id=48703276&rfr_iscdi=true |