Fecha (Creación)

2016-11-10T08:00:00

Formulario de presentación

Tabla digital

Propósito

Physico-chemical characterization of the water

Estado

En proceso

Mantenimiento y frecuencia de actualización

Mensualmente

Tema

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

Lugar

• Reunion Island
• Watershed "Rivière des Pluies"

Restricciones de Acceso

Restricted

Restricciones de uso

Restricted

Tipo de representación espacial

Vector

Denominador

1

Idioma del metadato

English

Codificación

UTF8

Categoría temática

• Aguas Interiores
• Medio ambiente

Fecha de inicio

2016

Fecha de finalización

en cours...

Identificador del Sistema de Referencia

EPSG:4326

Recurso en línea

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

Recurso en línea

RvMCan ( null )

Recurso en línea

RvPl100 ( null )

Recurso en línea

RvPl435 ( null )

Recurso en línea

RvQuina ( null )

Recurso en línea

TuRPluie ( null )

Jerarquía

Conjunto de datos

Declaración

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

Identificador del fichero

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

Idioma del metadato

English

Codificación

UTF8

Fecha

2021-10-28T12:18:10

Nombre estándar del metadato

ISO 19115:2003/19139

Versión estándar del metadato

1.0