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  1. Book ; Online: The effects of Hurricane Harvey on Texas coastal-zone chemistry

    Chapman, Piers / DiMarco, Steven F. / Knap, Anthony H. / Quigg, Antonietta / Walker, Nan D.

    eISSN: 1812-0792

    2023  

    Abstract: Hurricane Harvey deposited over 90×10 9 m 3 of rainwater over central Texas, USA, during late August/early September 2017. During four cruises (June, August, September and November 2017) we observed changes in hydrography and nutrient and oxygen ... ...

    Abstract Hurricane Harvey deposited over 90×10 9 m 3 of rainwater over central Texas, USA, during late August/early September 2017. During four cruises (June, August, September and November 2017) we observed changes in hydrography and nutrient and oxygen concentrations in Texas coastal waters. Despite intense terrestrial runoff, nutrient supply to the coastal ocean was transient, with little phytoplankton growth observed and no hypoxia. Observations suggest this was probably related to the retention of nutrients in the coastal bays and rapid uptake by phytoplankton of nutrients washed out of the bays, as well as dilution by the sheer volume of rainwater and the lack of significant carbon reserves in the sediments, despite the imposition of a strong pycnocline. By the November cruise conditions had apparently returned to normal, and no long-term effects were observed.
    Subject code 333
    Language English
    Publishing date 2023-03-01
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Book ; Online: The effects of Hurricane Harvey on Texas coastal zone chemistry

    Chapman, Piers / DiMarco, Steven F. / Knap, Anthony H. / Quigg, Antonietta / Walker, Nan D.

    eISSN:

    2023  

    Abstract: Hurricane Harvey deposited over 90×10 9 m 3 of rainwater over central Texas, USA, during late August/early September 2017. During four cruises (June, August, September and November 2017) we observed changes in hydrography and nutrient and oxygen ... ...

    Abstract Hurricane Harvey deposited over 90×10 9 m 3 of rainwater over central Texas, USA, during late August/early September 2017. During four cruises (June, August, September and November 2017) we observed changes in hydrography and nutrient and oxygen concentrations in Texas coastal waters. Despite intense terrestrial runoff, nutrient supply to the coastal ocean was transient, with little phytoplankton growth observed and no hypoxia. Observations suggest this was probably related to the retention of nutrients in the coastal bays and rapid uptake by phytoplankton of nutrients washed out of the bays, as well as dilution by the sheer volume of rainwater and the lack of significant carbon reserves in the sediments, despite the imposition of a strong pycnocline. By the November cruise conditions had apparently returned to normal, and no long-term effects were observed.
    Subject code 333
    Language English
    Publishing date 2023-03-01
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: The Peruvian-Chilean Coastal Upwelling System

    Kämpf, Jochen / Chapman, Piers

    2016  

    Abstract: This chapter describes the Peruvian-Chilean coastal upwelling system which is by far the most productive system in terms of pelagic fish among the Big Four coastal upwelling systems—a feature that is known as the Peruvian Puzzle. Also discussed are ... ...

    Abstract This chapter describes the Peruvian-Chilean coastal upwelling system which is by far the most productive system in terms of pelagic fish among the Big Four coastal upwelling systems—a feature that is known as the Peruvian Puzzle. Also discussed are fluctuations of fish and bird abundance in the context of the El Niño Southern Oscillation, overfishing and influences of nutrient limitation and interactions with the oxygen minimum zone.
    Language English
    Publisher Springer International
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Book ; Online: Implications of different nitrogen input sources for potential production and carbon flux estimates in the coastal Gulf of Mexico (GOM) and Korean Peninsula coastal waters

    Kim, Jongsun / Chapman, Piers / Rowe, Gilbert / DiMarco, Steven F. / Thornton, Daniel C. O.

    eISSN: 1812-0792

    2020  

    Abstract: The coastal Gulf of Mexico (GOM) and coastal sea off the Korean Peninsula (CSK) both suffer from human-induced eutrophication. We used a nitrogen (N) mass balance model in two different regions with different nitrogen input sources to estimate organic ... ...

    Abstract The coastal Gulf of Mexico (GOM) and coastal sea off the Korean Peninsula (CSK) both suffer from human-induced eutrophication. We used a nitrogen (N) mass balance model in two different regions with different nitrogen input sources to estimate organic carbon fluxes and predict future carbon fluxes under different model scenarios. The coastal GOM receives nitrogen predominantly from the Mississippi and Atchafalaya rivers and atmospheric nitrogen deposition is only a minor component in this region. In the CSK, groundwater and atmospheric nitrogen deposition are more important controlling factors. Our model includes the fluxes of nitrogen to the ocean from the atmosphere, groundwater and rivers, based on observational and literature data, and identifies three zones (brown, green and blue waters) in the coastal GOM and CSK with different productivity and carbon fluxes. Based on our model results, the potential primary production rate in the inner (brown water) zone are over 2 gC m −2 d −1 (GOM) and 1.5 gC m −2 d −1 (CSK). In the middle (green water) zone, potential production is from 0.1 to 2 (GOM) and 0.3 to 1.5 gC m −2 d −1 (CSK). In the offshore (blue water) zone, productivity is less than 0.1 (GOM) and 0.3 (CSK) gC m −2 d −1 . Through our model scenario results, overall oxygen demand in the GOM will increase approximately 21 % if we fail to reduce riverine N input, likely increasing considerably the area affected by hypoxia. Comparing the results from the USA with those from the Korean Peninsula shows the importance of considering both riverine and atmospheric inputs of nitrogen. This has direct implications for investigating how changes in energy technologies can lead to changes in the production of various atmospheric contaminants that affect air quality, climate and the health of local populations.
    Subject code 333
    Language English
    Publishing date 2020-01-08
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Preliminary Evidence for Iodate Reduction in Bottom Waters of the Gulf of Mexico During an Hypoxic Event

    Chapman, Piers / Truesdale, Victor W

    Aquatic geochemistry. 2011 Sept., v. 17, no. 4-5

    2011  

    Abstract: The distributions of iodate and total inorganic iodine concentrations in the waters on the Texas–Louisiana shelf in April, June, and August 2004 are described. Iodine–salinity graphs show three-end-member mixing involving onshore and offshore surface ... ...

    Abstract The distributions of iodate and total inorganic iodine concentrations in the waters on the Texas–Louisiana shelf in April, June, and August 2004 are described. Iodine–salinity graphs show three-end-member mixing involving onshore and offshore surface waters and deep offshore water. The April survey showed simple mixing on the surface, but in the later surveys, iodate concentrations were often much lower than predicted by the mixing curve while those for total inorganic iodine were higher. This demonstrated both iodate reduction in the water and iodide addition, although individual samples did not show equivalent speciation changes. Hydrographically, the system consists of the estuaries of the Mississippi and Atchafalaya rivers as they spill onto the shelf. The waters are stratified seasonally by a robust halocline, leading to hypoxia in the bottom waters from the combined effect of restricted downward diffusion of oxygen and the sinking of the luxuriant growth of phytoplankton induced by riverine nutrient supply. The distributions of iodate and total inorganic iodine are, therefore, interpreted in terms of water–sediment interaction as the shelf shoals to the north.
    Keywords estuaries ; hypoxia ; iodides ; iodine ; oxygen ; phytoplankton ; rivers ; surface water ; surveys ; Gulf of Mexico ; Mississippi ; Mississippi River
    Language English
    Dates of publication 2011-09
    Size p. 671-695.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 1478538-9
    ISSN 1573-1421 ; 1380-6165
    ISSN (online) 1573-1421
    ISSN 1380-6165
    DOI 10.1007/s10498-011-9123-6
    Database NAL-Catalogue (AGRICOLA)

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  6. Book: Hydrographic atlas of the World Ocean Circulation Experiment (WOCE)

    Chapman, Piers / Gould, John / Sparrow, Michael

    2005  

    Abstract: The horizontal maps combine the WOCE data with the best available historical data for each ocean and contain between ten and twelve layers (depending on the atlas volume). Choice of which historical stations to include as well as which levels to show ... ...

    Institution WOCE International Project Office
    Author's details series ed. by Michael Sparrow; Piers Chapman and John Gould
    Abstract The horizontal maps combine the WOCE data with the best available historical data for each ocean and contain between ten and twelve layers (depending on the atlas volume). Choice of which historical stations to include as well as which levels to show rests with the Principal Investigators (PIs) responsible for each atlas volume. The property-property plots show the above mentioned parameters against potential temperature only, though additional combinations may be obtained from the electronic versions of the atlases (see below). The atlases will contain between 265 and 310 plates each and at the moment it is envisioned that around 1500 copies will be produced. (MOD)
    Language English
    Dates of publication 2005-9999
    Publisher Southampton Oceanography Center
    Publishing place Southampton
    Document type Book
    Database Former special subject collection: coastal and deep sea fishing

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  7. Book: Atlantic ocean

    Koltermann, Klaus Peter / Chapman, Piers / Gould, John / Gouretski, Victor / Jancke, Kai / Sparrow, Michael

    (Hydrographic atlas of the World Ocean Circulation Experiment (WOCE) ; / series ed. by Michael Sparrow; Piers Chapman and John Gould ; 3)

    2011  

    Title variant Atlantic Ocean hydrographic atlas
    Institution WOCE International Project Office
    Author's details Klaus Peter Koltermann
    Series title Hydrographic atlas of the World Ocean Circulation Experiment (WOCE)
    / series ed. by Michael Sparrow; Piers Chapman and John Gould ; 3
    Language English
    Size XX, 221 S., graph. Darst., Kt
    Publisher National Oceanography Center
    Publishing place Southampton
    Document type Book
    Note Literaturangaben
    Accompanying material 1 DVD-ROM (12 cm)
    ISBN 090417557X ; 9780904175578
    Database Former special subject collection: coastal and deep sea fishing

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  8. Article: Composition, abundance and age of total organic carbon in surface sediments from the inner shelf of the East China Sea

    Li, Xinxin / Bianchi, Thomas S / Allison, Mead A / Chapman, Piers / Mitra, Siddhartha / Zhang, Zhaoru / Yang, Guipeng / Yu, Zhigang

    Marine chemistry. 2012 Nov. 20, v. 145-147

    2012  

    Abstract: Surface sediments were collected from the inner shelf of the highly dynamic East China Sea (ECS) in December 2009 and November 2010. In between the two cruises, a big flood event occurred in July, 2010. Elemental, stable C, N isotope, radiocarbon isotope ...

    Abstract Surface sediments were collected from the inner shelf of the highly dynamic East China Sea (ECS) in December 2009 and November 2010. In between the two cruises, a big flood event occurred in July, 2010. Elemental, stable C, N isotope, radiocarbon isotope (∆¹⁴C), black carbon (BC) analysis, and chemical biomarkers were utilized to study the effect of the sources, short-term events and physical processes on the composition, abundance, and age of the surface sedimentary OC in this dynamic system. Bulk N/C ratio of 0.10 to 0.14 and δ¹³C of −23.1‰ to −20.9‰ in these samples indicated a mixture source of terrestrial, deltaic and marine derived OC during both cruises. The TOC was 1,980 to 5,040yr old based on ∆¹⁴C, and BC extracted from two 2009 sediment samples was older: 5,480 and 5,920yr old. While the Changjiang River was a main source of the terrestrial derived OC, refractory BC and reworked marine organic matter seemed to comprise the older, less reactive carbon pool in the surface sediments of the ECS. Monte Carlo simulations indicated that more than 50% of the TOC was derived from the marine end-member, followed by the deltaic OC. The chlorophyll a of the 2010 sediment samples (11.06±10.15nmolg⁻¹ OC, n=7) was significantly lower than that of the 2009 samples (34.58±20.29nmolg⁻¹ OC, n=7). However, zeaxanthin, a biomarker for cyanobacteria, had significantly higher concentration in the 2010 sediment samples (9.26±3.48nmolg⁻¹ OC, n=7) than that of the 2009 samples (5.50±4.62nmolg⁻¹ OC, n=7). The lack of benthic–pelagic coupling of pigment concentrations in surface sediments after the flood of 2010 was likely due to lateral transport of surface sediments to and from this region. While there were no significant linkages between in situ shelf-derived phytoplankton sources of OC and surface sediment pigment concentrations in 2010, other algal inputs from local deltaic lakes may have contributed to the compositional changes in concentration of sediment carotenoids. The flood of summer 2010 likely played a critical role in the observed shift of the locations for the highest terrestrial biomarker concentrations in sediments. Little evidence remained from the 2010 flood event, which suggested that winter wind/wave energy and hydrodynamic sorting had a substantial effect on sediment OC redistribution.
    Keywords Monte Carlo method ; biomarkers ; carbon ; carbon sinks ; chlorophyll ; hydrodynamics ; isotopes ; lakes ; organic matter ; phytoplankton ; rivers ; sediments ; sorting ; summer ; water power ; wind ; zeaxanthin ; East China Sea
    Language English
    Dates of publication 2012-1120
    Size p. 37-52.
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 0304-4203
    DOI 10.1016/j.marchem.2012.10.001
    Database NAL-Catalogue (AGRICOLA)

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  9. Book: Pacific Ocean

    Talley, Lynne D / Chapman, Piers / Gould, John / Sparrow, Michael

    (Hydrographic atlas of the World Ocean Circulation Experiment (WOCE) ; / series ed. by Michael Sparrow; Piers Chapman and John Gould ; 2)

    2007  

    Institution WOCE International Project Office
    Author's details Lynne D. Talley
    Series title Hydrographic atlas of the World Ocean Circulation Experiment (WOCE)
    / series ed. by Michael Sparrow; Piers Chapman and John Gould ; 2
    Language English
    Size XX, 327 S., graph. Darst., Kt
    Publisher National Oceanography Center
    Publishing place Southampton
    Document type Book
    Note Literaturangaben
    Accompanying material 1 DVD-ROM (12 cm)
    ISBN 0904175545 ; 9780904175547
    Database Former special subject collection: coastal and deep sea fishing

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    Order via subito

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  10. Book: Southern Ocean

    Orsi, Alejandro H / Chapman, Piers / Gould, John / Sparrow, Michael / Whitworth III, Thomas

    (Hydrographic atlas of the World Ocean Circulation Experiment (WOCE) ; / series ed. by Michael Sparrow; Piers Chapman and John Gould ; 1)

    2005  

    Title variant Southern Ocean hydrographic atlas
    Institution WOCE International Project Office
    Author's details Alejandro H. Orsi and Thomas Whitworth III
    Series title Hydrographic atlas of the World Ocean Circulation Experiment (WOCE)
    / series ed. by Michael Sparrow; Piers Chapman and John Gould ; 1
    Language English
    Size XX, 223 S., graph. Darst., Kt
    Publisher Southampton Oceanography Center
    Publishing place Southampton
    Document type Book
    Note Literaturangaben
    Accompanying material 1 DVD-ROM (12 cm)
    ISBN 0904175499 ; 9780904175493
    Database Former special subject collection: coastal and deep sea fishing

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    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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