An approach for the identification of exemplar sites for scaling up targeted field observations of benthic biogeochemistry in heterogeneous environments

Continental shelf sediments are globally important for biogeochemical activity. Quantification of shelf-scale stocks and fluxes of carbon and nutrients requires the extrapolation of observations made at limited points in space and time. The procedure for selecting exemplar sites to form the basis of this up-scaling is discussed in relation to a UK-funded research programme investigating biogeochemistry in shelf seas. A three-step selection process is proposed in which (1) a target area representative of UK shelf sediment heterogeneity is selected, (2) the target area is assessed for spatial heterogeneity in sediment and habitat type, bed and water column structure and hydrodynamic forcing, and (3) study sites are selected within this target area encompassing the range of spatial heterogeneity required to address key scientific questions regarding shelf scale biogeochemistry, and minimise confounding variables. This led to the selection of four sites within the Celtic Sea that are significantly different in terms of their sediment, bed structure, and macrofaunal, meiofaunal and microbial community structures and diversity, but have minimal variations in water depth, tidal and wave magnitudes and directions, temperature and salinity. They form the basis of a research cruise programme of observation, sampling and experimentation encompassing the spring bloom cycle. Typical variation in key biogeochemical, sediment, biological and hydrodynamic parameters over a pre to post bloom period are presented, with a discussion of anthropogenic influences in the region. This methodology ensures the best likelihood of site-specific work being useful for up-scaling activities, increasing our understanding of benthic biogeochemistry at the UK-shelf scale

PROTEUS Short version

Available from TIB Hannover: F02B1342 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany); DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V. (Germany)DEGerman

GAFLEX - Galileo flight experiment. Phase B: definition study. Executive summary and Galileo Flugexperiment. Short description Final report

Published in two volumes. Document nos. GAFL-ASMD-RP-1000-0001/0002SIGLEAvailable from TIB Hannover: F01B1760: F01B1761 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany); DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Bonn (Germany)DEGerman

Shuttle Radar Topography Mission X-SAR/SRTM Final report

SIGLEAvailable from TIB Hannover: F03B548 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

LBNP HRF - LBHRF-RIBRE-0029. Entwicklung, Fertigung und Qualifikation des Lower Body Negative Pressure Systems (LBNP) fuer HRF Final report

With CD-ROMSIGLEAvailable from TIB Hannover: F03B248 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany); Deutsche Bundesstiftung Umwelt, Osnabrueck (Germany)DEGerman

InfoTerra/TerraSAR definition study. Initiative to exploit the growing market for geo-information products and services

SIGLEAvailable from TIB Hannover: F04B806 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Bonn (Germany)DEGerman

Steerable Ka-Band Antenna. Ergaenzung 'Flexible Hohlleiter Qualifikation' Schlussbericht

Available from TIB Hannover: DtF QN1(98,28) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) Phase C/D Final report

SIGLEAvailable from TIB Hannover: F04B2407 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman