Дата (создания)

2016-11-10T08:00:00

Форма представления

электронная таблица

Назначение набора данных

Physico-chemical characterization of the water

Статус

постоянно обновляемый

Частота обновления

ежемесячно

предмет

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

место

• Reunion Island
• Watershed "Rivière des Pluies"

Ограничения на получение

ограничения раскрытия информации

Ограничения на использование

ограничения раскрытия информации

Тип пространственного представления

вектор

Знаменатель масштаба

1

Язык

English

Кодировка

utf8

Предметная область

• Поверхностные воды
• Окружающая среда

Дата начала

2016

Дата окончания

en cours...

Reference system identifier

EPSG:4326

Онлайновый ресурс

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

Онлайновый ресурс

RvMCan ( null )

Онлайновый ресурс

RvPl100 ( null )

Онлайновый ресурс

RvPl435 ( null )

Онлайновый ресурс

RvQuina ( null )

Онлайновый ресурс

TuRPluie ( null )

Иерархический уровень

набор данных

Общие сведения о происхождении данных

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

Идентификатор файла

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

Язык

English

Кодировка

utf8

Время создания метаданных

2021-10-28T12:18:10

Название стандарта метаданных

ISO 19115:2003/19139

Версия стандарта метаданных

1.0