Mon GéoSource
Physical environment - In situ data - Mean fluorescence collected during the REISE2 survey in May 1995
Three environmental parameters were measured in situ during the REISE2 survey in April 1995. Temperature and salinity were measured using a probe. Fluorescence (mean for the water column) was measured using a fluorometer. This survey gives illustration of spring conditions.
Simple
- Alternate title
- REISE2_environment_geostatA
- Date ( Publication )
- 2009-12-31T00:00:00
- Identifier
- CHARM_REISE2_FLUO_R
- Presentation form
- Digital map
- Other citation details
- Source CHARM Consortium
- Credit
- Université du Littoral Côte d'Opale
- Credit
- CHARM consortium
- Status
- Completed
Point of contact
UPMC Univ Paris 06, UMR 7093, Laboratoire d'Océanographie de Villefranche
-
Philippe Koubbi
(
)
- Maintenance and update frequency
- As needed
- Thèmes Sextant ( Theme )
-
- /Physical Environment/Physical Habitats
- Keywords ( Discipline )
-
- Species data set
- CHARM
- GEMET - INSPIRE themes, version 1.0 ( Theme )
-
- Habitats et biotopes
- external.theme.gemet ( Theme )
-
- ressource halieutique
- Use limitation
- research-only
- Access constraints
- License
- Other constraints
- Has to be cited this way in maps : "Source CHARM Consortium"
- Other constraints
- Has to be cited this way in bibliography : "Carpentier A, Martin CS, Vaz S (Eds.), 2009. Channel Habitat Atlas for marine Resource Management, final report / Atlas des habitats des ressources marines de la Manche orientale, rapport final (CHARM phase II). INTERREG 3a Programme, IFREMER, Boulogne-sur-mer, France. 626 pp. & CD-rom"
- Spatial representation type
- Grid
- Denominator
- 1000
- Metadata language
- fr
- Metadata language
- en
- Character set
- UTF8
- Topic category
-
- Oceans
- Environment description
- Microsoft Windows XP ; ESRI ArcGIS 9.x
- Geographic identifier
- Eastern English Channel
N
S
E
W
))
- Reference system identifier
- EPSG / WGS 84 (EPSG:4326) / 7.4
- Number of dimensions
- 2
- Dimension name
- Column
- Dimension size
- 563
- Resolution
- 0.009 degree
- Dimension name
- Row
- Dimension size
- 457
- Resolution
- 0.009 degree
- Cell geometry
- Area
- Transformation parameter availability
- No
Distributor
- OnLine resource
-
CHARM web site
(
WWW:LINK
)
CHARM web site
- Protocol
- COPYFILE
- Name
- Mean fluorescence
- Description
- Mean fluorescence
- OnLine resource
-
CHARM_REISE2_FLUO_R
(
OGC:WMS
)
Mean fluorescence
- Hierarchy level
- Dataset
- Statement
- In 1995, two “REISE” surveys were held: these surveys looked at ichthyoplankton between the Schelde and Seine estuaries. There were 60 stations sampled in May 1995 (REISE 2). Ichthyoplankton was collected with a double-framed bongo net (plankton nets with 500 μm mesh). Oblique tows were carried out at 2 knots from the surface to the proximity of the seabed.
- Description
- Statistical analysis : the statistical distribution of environmental data were tested for normality (histograms, skewness, kurtosis). The data were transformed whem skewness value exceeded |1| and/or kurtosis exceeded 1 and if a normalising function that could improve the data distribution was found. Environmental variables were measured on scales based on analytical conventions that are unrelated to the natural processes generated them. Therefore, any transformed scale is as appropriate as those on which these data were originally recorded. Geostatistical interpolation : the spatial variation of environmental data were analysed using GENSTAT (GENSTAT 7 Committee, 2004), which is a GENeral STATistics package including the main geostatistical tools. It computes experimentala variograms, fits these with various authorised mathematical models and uses them to calculate kriged estimates on a fine regular grid (of latitudes and longitudes). The grid of points was imported into ArcMap and interpolated with the Spatial Analyst extension in order to create a continuous raster of 1 km² resolution. The resulting maps illustrate the spatial distributions and the variations over time for environmental data studied in CHARM's area. For legends of maps, approximates od the 5th and the 95th quantiles were used for the minimales and maximales values respectively.
- Description
- REISE2 survey, scientific survey of ULCO
- File identifier
- d81142ea-5331-4a19-ad59-b5a078062d73 XML
- Metadata language
- en
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2020-06-04T00:29:44
- Metadata standard name
- ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
- 1.0
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available