Application of GIS for calculations of geochemical budgets in the marine environment

A major attempt of geochemical studies is the investigation of the transfer of primary produced biogenic components (e. g. organic carbon or biogenic silica) from surface waters to the deep-sea and their burial in sediments. Particle trap data and investigations of sediments and pore waters provide...

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Main Authors: Schäfer, Angela, Schlüter, Michael, Sauter, Eberhard, Suess, E.
Format: Conference Object
Language:unknown
Published: 1998
Subjects:
Online Access:https://epic.awi.de/id/eprint/9775/
https://hdl.handle.net/10013/epic.20273
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spelling ftawi:oai:epic.awi.de:9775 2023-09-05T13:21:42+02:00 Application of GIS for calculations of geochemical budgets in the marine environment Schäfer, Angela Schlüter, Michael Sauter, Eberhard Suess, E. 1998 https://epic.awi.de/id/eprint/9775/ https://hdl.handle.net/10013/epic.20273 unknown Schäfer, A. orcid:0000-0003-1784-2979 , Schlüter, M. orcid:0000-0002-4997-3802 , Sauter, E. orcid:0000-0001-7954-952X and Suess, E. (1998) Application of GIS for calculations of geochemical budgets in the marine environment , Eos, Transactions, AGU supplement . hdl:10013/epic.20273 EPIC3Eos, Transactions, AGU supplement, 79, 511 p. Conference notRev 1998 ftawi 2023-08-22T19:48:15Z A major attempt of geochemical studies is the investigation of the transfer of primary produced biogenic components (e. g. organic carbon or biogenic silica) from surface waters to the deep-sea and their burial in sediments. Particle trap data and investigations of sediments and pore waters provide a suitable data set for the evaluation of such budgets. Nevertheless, these local measurements allow no direct calculation of global or basin-wide geochemical budgets. Major difficulties are the calculation of regions with irregular shape like ocean basins or continental slopes and the spatial extrapolation of flux measurements.Geographic Information Systems (GIS) combine several techniques to solve such problems. GIS allows the exact planimetry of spatial entities and the combination of different information layers like bathymetry, remote sensing data or field measurements by overlay technique. Furthermore GIS enables different geographic projections to controll an appropriate equal area calculation. Gridded ocean-wide data sets permit a cell-by-cell processing, which guarantees no loss of information. By logical queries to a GIS data base, spatial data sets are easily devided into zones of special interests.As an example for the application of GIS the geochemical budget of the organic carbon and biogenic silica fluxes through the sediment-water interface of the northern North Atlantic will be presented. By establishing an empirical relationship based on measured benthic fluxes, water depth and satellite derived primary production rates an area-wide organic carbon flux extrapolation is achieved. Using estimated sediment accumulation rates burial rates are calculated. A similar aproach is used to model biogenic silica flux. Statistical and visual analysis are performed via GIS to controll the extrapolation of data. Conference Object North Atlantic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
institution Open Polar
collection Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
op_collection_id ftawi
language unknown
description A major attempt of geochemical studies is the investigation of the transfer of primary produced biogenic components (e. g. organic carbon or biogenic silica) from surface waters to the deep-sea and their burial in sediments. Particle trap data and investigations of sediments and pore waters provide a suitable data set for the evaluation of such budgets. Nevertheless, these local measurements allow no direct calculation of global or basin-wide geochemical budgets. Major difficulties are the calculation of regions with irregular shape like ocean basins or continental slopes and the spatial extrapolation of flux measurements.Geographic Information Systems (GIS) combine several techniques to solve such problems. GIS allows the exact planimetry of spatial entities and the combination of different information layers like bathymetry, remote sensing data or field measurements by overlay technique. Furthermore GIS enables different geographic projections to controll an appropriate equal area calculation. Gridded ocean-wide data sets permit a cell-by-cell processing, which guarantees no loss of information. By logical queries to a GIS data base, spatial data sets are easily devided into zones of special interests.As an example for the application of GIS the geochemical budget of the organic carbon and biogenic silica fluxes through the sediment-water interface of the northern North Atlantic will be presented. By establishing an empirical relationship based on measured benthic fluxes, water depth and satellite derived primary production rates an area-wide organic carbon flux extrapolation is achieved. Using estimated sediment accumulation rates burial rates are calculated. A similar aproach is used to model biogenic silica flux. Statistical and visual analysis are performed via GIS to controll the extrapolation of data.
format Conference Object
author Schäfer, Angela
Schlüter, Michael
Sauter, Eberhard
Suess, E.
spellingShingle Schäfer, Angela
Schlüter, Michael
Sauter, Eberhard
Suess, E.
Application of GIS for calculations of geochemical budgets in the marine environment
author_facet Schäfer, Angela
Schlüter, Michael
Sauter, Eberhard
Suess, E.
author_sort Schäfer, Angela
title Application of GIS for calculations of geochemical budgets in the marine environment
title_short Application of GIS for calculations of geochemical budgets in the marine environment
title_full Application of GIS for calculations of geochemical budgets in the marine environment
title_fullStr Application of GIS for calculations of geochemical budgets in the marine environment
title_full_unstemmed Application of GIS for calculations of geochemical budgets in the marine environment
title_sort application of gis for calculations of geochemical budgets in the marine environment
publishDate 1998
url https://epic.awi.de/id/eprint/9775/
https://hdl.handle.net/10013/epic.20273
genre North Atlantic
genre_facet North Atlantic
op_source EPIC3Eos, Transactions, AGU supplement, 79, 511 p.
op_relation Schäfer, A. orcid:0000-0003-1784-2979 , Schlüter, M. orcid:0000-0002-4997-3802 , Sauter, E. orcid:0000-0001-7954-952X and Suess, E. (1998) Application of GIS for calculations of geochemical budgets in the marine environment , Eos, Transactions, AGU supplement . hdl:10013/epic.20273
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