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 SCOR/LOICZ
Working Group 112
"MAGNITUDE OF SUBMARINE GROUNDWATER DISCHARGE AND
ITS INFLUENCE ON COASTAL OCEANOGRAPHIC PROCESSES"
Sponsored
by
the
Scientific Committee on Oceanic Research (SCOR)
and
the Land-Ocean Interactions in the Coastal Zone (LOICZ)
programme
element of the
International
Geosphere-Biosphere Programme (IGBP)
Table of Contents:
- Objectives and Terms of
Reference
- Members, Associate Members, Participating
Scientists
- Organizational Structure and Work Plan
- Summary
- Scientific Background and Issues
- Bibliography
- News Article on WG-112
(approved by SCOR 33rd Executive Committee Meeting, Fall
1997):
The overall goal of this working group will be to define more
accurately and completely how submarine groundwater discharge influences
chemical and biological processes in the coastal ocean. We will consider
development of the tools necessary to define effects of SGD on seasonal to
interannual time scales. In addition, a typological approach will be used to
define variations in SGD along different shorelines.
Recognition of the importance of groundwater flow into surface waters as
a pathway for dissolved constituents has increased dramatically in the last
few years. As one specific example, the Russian Academy of Sciences together
with the "Land-Ocean Interactions in the Coastal Zone" (LOICZ)
Project of the International Geosphere-Biosphere Programme convened an
international workshop in Moscow in July 1996 entitled "Groundwater
Discharge in the Coastal Zone." The initial impetus for convening the
symposium stemmed from the recognition that an understanding of the
biogeochemical dynamics of the coastal zone required knowledge of all
inputs, and that in some locations the contribution of groundwater
discharge, although not as easily recognized as oceanic exchange or surface
flow, could be important. The strength of the workshop was that it brought
together scientists with disparate backgrounds (e.g., hydrology, chemical
oceanography) who have been working on similar problems from different
points of view - literally from the opposite ends of the same process. Our
intention is to pick up where the LOICZ symposium left off and focus on the
key problems. Specifically, the following tasks will define the activities
of the proposed working group:
- To review and assess deficiencies in our knowledge concerning the
magnitude of fluxes of SGD.
Although we will benefit from the recent LOICZ workshop on this
subject, there are still areas which need further definition. For example,
it remains unclear how effects of SGD may be distinguished from those
caused by other processes.
- To define the existing methods and tools useful for measurement of
groundwater fluxes to the coastal zone.
There are several scientific questions that arise in this context. How
can SGD estimates be validated? Are geochemical tracers reliable? Which
tracers work best? Can direct measurement techniques (e.g., seepage
meters) be improved? Can new instruments be designed to assist in the
measurement problem?
- To examine the possibility of using a typological approach to assess
SGD over broad areas.
The identification of "type" areas (e.g., karst, volcanic
terrain) where the process can be studied in detail and results applied
elsewhere would appear to be a reasonable approach.
- To review and assess the chemical (nutrients, pollutants) consequences
of SGD and to suggest follow-up studies of the physical and ecological
consequences.
- To prepare a series of manuscripts for a special issue of an
international journal that will describe the "Influence of
Submarine Groundwater Discharge on Coastal Marine Processes."
- To prepare a final report to SCOR within four years and an interim
report on the first term of reference within two years.
Co-Chairs:
Prof. William C. Burnett
Environmental Radioactivity Measurement Facility
Department of Oceanography
Florida State University
Tallahassee, Florida 32306-3048 USA
tel: (+1) 850-644-6703
fax: (+1) 850-644-2581
E-mail
[use of natural radioactive tracers (222Rn, etc.) for
assessment of groundwater flow into the ocean; seepage meter measurements]
Prof. Evgeny A. Kontar
P.P. Shirshov Institute of Oceanology
Russian Academy of Sciences
36 Nakhimovskiy prospekt
Moscow 117218, RUSSIA
tel: (+7) (095) 916 0311, 235 9693
fax: (+7) (095) 956 2448
E-mail
[sea-floor instrumentation and methods of long-term near-bottom
observation]
Members:
Dr. Robert W. Buddemeier
Kansas Geological Survey
University of Kansas
1930 Constant Ave.
Lawrence, Kansas 66047-3726 USA
tel: (+1) 785-864-3965
fax: (+1) 785-864-5317
E-mail
[Interests and expertise: Globalization, typology,
biogeochemical budgets; coral reef and carbonate island hydrology and
hydrogeochemistry]
LOICZ representative, WG-112
Prof. Georgia Destouni
Water Resources Engineering
Royal Institute of Technology
Brinellv. 32, S-100 44 Stockholm, SWEDEN
tel: (+46) 8-790-9057
fax: (+46) 8-790-8689
E-mail
[Groundwater and pollutants, hydrological transport
mechanisms, field-scale tracer experiments].
Dr. Toshitaka Gamo
Ocean Research Institute
University of Tokyo
1-15-1, Minamidai, Nakano
Tokyo 164, JAPAN
tel: (+81) 3-5351-6449
fax: (+81) 3-5351-6452
E-mail
[fluid seepage from the deep seafloor,
tectonically induced cold seepage, geochemical tracers].
Prof. Willard S. Moore
Department of Geological Sciences
University of South Carolina
Columbia, SC, 29208, USA
tel: (+1) (803) 777-2262
E-mail
[natural geochemical tracers of groundwater flow, radium
isotopes].
Prof. Aldo da Cunha Reboucas
Hidro Ambiente, projetos, consultoria e servicos ltda
Rua Adao Adler, 22, 05.328-010
Sao Paulo, SP, BRAZIL
tel: (+55) 11-869-4500
Fax: (+55) 11-869-0483
E-mail
[groundwater management, hydrogeology]
Prof. Dr. Klaus-Peter Seiler
GSF Forschungszentrum fur Umwelt und Gesundheit GmbH
Institut fur Hydrologie
Neuherberg, Postfach 11 29
D-85758 Oberschliessheim, GERMANY
tel: (+49) 89-3-187-2560
fax: (+49) 89-3-187-3361
E-mail
[hydrology, groundwater pollution, interaction between
groundwater and surface waters, isotopic techniques]
Dr. Makoto Taniguchi
Department of Earth Sciences
Nara University of Education
Nara 630-8528, JAPAN
tel (+81) 742-27-9202
fax: (+81) 742-27-9291
E-mail
[direct measurements of groundwater flow via automated
seepage meters, tracer hydrology]
Prof. Igor S. Zektser
Water Problems Institute
Russian Academy of Sciences
P.O. Box 231, 10 Novaya Basmannaya Str.
Moscow, 107078, RUSSIA
tel: (+7) (095) 135 5458, 265 9534
fax: (+7) (095) 265 1887
Ed.Urban
[large-scale studies of groundwater discharge into the
ocean, hydrogeological investigations]
Associate Members:
Prof. Henry J. Bokuniewicz
Marine Science Research Center
SUNY Stony Brook
Stony Brook, NY 11794-5000 USA
tel: (+1) 516-632-8674
fax: (+1) 516-632-8820
E-mail
[physical aspects of groundwater seepage to the coastal
zone, typological approach to characterizing groundwater discharge]
Dr. Jaye Cable
Coastal Ecology Institute
Department of Oceanography
Louisiana State University
Baton Rouge, LA 70803, USA
tel: (+1) (504) 334-2390
fax: (+1) (504) 388-6326
E-mail
[natural tracers of groundwater discharge, seepage meter
studies]
Prof. Jeffrey Chanton
Department of Oceanography
Florida State University
Tallahassee, FL 32306-3048, USA
tel: (+1) (904) 644-7493
fax: (+1) (904) 644-2581
E-mail
[methane budgets in coastal waters and the influence of
groundwater discharge, study of groundwater flow by artificial tracers]
Dr. Gerry Jacobson
Australian Geological Survey Organization
P.O. Box 378
Canberra, ACT 2601, AUSTRALIA
tel: (+61) 62 499 758
fax: (+61) 62 499 970
E-mail
[coastal hydrology, coastal evolution and effects of
groundwater discharge]
Prof. June Oberdorfer
Department of Geology
San Jose State University
San Jose, CA 95192-0102, USA
tel: (+1) (408) 924-5026
fax: (+1) (408) 924-5053
E-mail
[numerical modeling of coastal discharge, effects of
climate change on SGD]
Prof. Leslie Smith
Department of Earth and Ocean Sciences
University of British Columbia
6339 Stores Road
Vancouver, BC V6T 1Z4, CANADA
tel: (+1) 604-822-4108
fax: (+1) 604-822-6088
E-mail
[modeling of groundwater supply systems, hazardous waste
management studies, geostatistical analysis of groundwater]
Dr. B.L.K. Somayajulu
Physical Research Laboratory
Navrangpura
Ahmedabad-380009, INDIA
E-mail
[river-estuarine interactions, coastal oceanography,
sedimentation, isotope techniques]
Dr. Luigi Tulipano
Instituto Di Geologia Applicata e Geotecnica
Politecnico di Bari
Via E. Orabona, 4, 70125 Bari, ITALY
tel: (+39) 80 546 0373
fax: (+39) 80 546 0675
[hydrogeologic studies in karst, environmental tracers,
groundwater pollution]
Dr. Chung-Ho Wang
Institute of Earth Sciences
Academia Sinica
P.O. Box 1-55, Nankang, Taipei
Taiwan 11529, R.O.C.
tel: (+886) 2-2783-9910
fax: (+886) 2-2651-1795
E-mail
[stable isotopes of H, O, C; isotope and geochemical
studies of the hydrologic cycle; seawater intrusion]
Corresponding Scientists:
Dr. Maria Malmstrom
Water Resources Engineering
Royal Institute of Technology
S-100 44 Stockholm, SWEDEN
tel: (+46) 8 790 8745
fax: (+46) 8 790 8689
E-mail
Dr. Jeffrey Turner
CSIRO Land and Water
Private Bag, PO Wembley
WA 6014, AUSTRALIA
tel: (+61) 8-9333-6314
fax: (+61) 8-9387-8211
E-mail
www: http://www.clw.csiro.au
Prof. Masao Kobayashi
Division of Natural Sciences
Osaka Kyoiku Univ.
Kashiwara 4
Osaka 582, JAPAN
tel: (+81) 729 78 3641
E-mail
Prof. Kee-Hyun Kim
Oceanography Department
Chungnam National University
Taejon 305-764, KOREA
tel: (+82) 42 821 6436
fax: (+82) 42 822 8173
E-mail
Questions or Comments?
Please contact SCOR.
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