Datum (Erstellung)

2016-11-10T08:00:00

Präsentationsform

Digitale Tabelle

Zweck

Physico-chemical characterization of the water

Bearbeitungsstatus

Kontinuierliche Aktualisierung

Überarbeitungsintervall

Monatlich

Thema

• Alkalinity
• Elements
• Temperature
• Isotopes
• pH
• Conductivity
• River
• Water
• Particle
• Suspension material

Ort

• Reunion Island
• Watershed "Rivière des Pluies"

Zugriffseinschränkungen

Beschränkter Zugang

Nutzungseinschränkungen

Beschränkter Zugang

Räumliche Darstellungsart

Vektor

Massstabszahl

1

Sprache

English

Zeichensatz

Utf8

Thematik

• Binnengewässer
• Umwelt

Anfangszeitpunkt

2016

Endzeitpunkt

en cours...

Identifikator des Referenzsystems

EPSG:4326

Online

PlPF1300 ( WWW:LINK-1.0-http--link )

Online

RvMCan ( null )

Online

RvPl100 ( null )

Online

RvPl435 ( null )

Online

RvQuina ( null )

Online

TuRPluie ( null )

Bezugsebene

Datenbestand

Erläuterung

The variables concerned correspond to measurements made in the field (T°, Specific conductivity 25° and pH) during water sampling as well as alkalinity measurements made in the laboratory. The selected quality code is divided into 4 categories coded from 1 to 4: Code 1: correct Code 2: suspicious Code 3: bad Code 4: missing. Field measurements: They are carried out in 2016 and 2017 by a WTW conductivity and pH meter and from 2018 by an integrated "Smart-Troll" probe from the manufacturer INSITU). In both cases, the calibration and calibration protocols of the probes are carried out according to the manufacturer's instructions and at least once every 6 months for the conductivity probe and before each output for the pH probe. In this context, the data obtained with these two devices are considered reliable (code 1). Alkalinity measurements: They are performed in the laboratory by titrimetry within 1 to 2 months after sampling. The quality criterion was assessed as the average of two potential sources of error assessed as follows: - Uncertainty about the evolution of the mineralization of the sample evaluated by the variability of the conductivity measured in the field and that measured in the laboratory at the time of the ErCond= Abs(CondTerrain-CondLabo)/Cond terrain in %. - Uncertainty about the titration evaluated by the varibility of the results obtained by different interpretation methods with respect to the Gran method. ErTitr= EcType (HCO3)/Mean (HCO3 calculated by 4 graphical methods). The proposed qualification is based on the average of these two errors f (ErCond+ErTitr)/2<=5% : Code 1 If 5%<(ErCond+ErTitr)/2<=10% : Code 2 If (If (ErCond + ErTitr)not defined: Code 4

Metadatensatzidentifikator

dc0a5fa8-1d05-4656-969b-cb3f670023fe XML

Sprache

English

Zeichensatz

Utf8

Datum

2021-10-28T12:18:10

Bezeichnung des Metadatenstandards

ISO 19115:2003/19139

Version des Metadatenstandards

1.0