Citation:

PANGAEA.909620

Name: Cloud Chemistry Monitoring at Mt. Brocken, Germany - 2001
Published: 2019-12-05
License: https://creativecommons.org/licenses/by/4.0/
Keywords: CLOUDCHEMBROCKEN; cloud chemistry; cloud water chemical composition; cloud water samling; liquid water content; long-term measurement; Monitoring; mountain station

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Keyword(s):

CLOUDCHEMBROCKEN; cloud chemistry; cloud water chemical composition; cloud water samling; liquid water content; long-term measurement; Monitoring; mountain station

Coverage:

Latitude: 51.799000 * Longitude: 10.610000

Date/Time Start: 2001-04-28T15:00:00 * Date/Time End: 2001-11-04T06:00:00

Minimum HEIGHT above ground: 5 m * Maximum HEIGHT above ground: 5 m

Event(s):

Mt_Brocken * Latitude: 51.799000 * Longitude: 10.610000 * Elevation: 1139.0 m * Location: Harz, Germany * Method/Device: Monitoring (MON)

Comment:

The liquid water content of clouds (LWC) has been continuously measured using forward scattering of laser beams by cloud droplets with a Particulate Volume Monitor PVM-100 (Gerber Scientific Inc.). This instrument was also used to control an automated „wet-only” sampling unit that opens up and moves a passive string collector (ASRC type) into sampling position when the LWC level exceeds a 25mg/m**3 threshold. The samples were analysed by ion chromatography (DIONEX suppressor, SYKAM pump and conductivity detector, JASCO sampler) for anions ([Cl]-, [NO3]-, [SO4]2-) and cations ([Na]+, [NH4]+, [K]+, [Ca]2+, [Mg]2+), pH and conductivity. The acceptance criteria for ion balance and for conductivity (measured/calculated), respectively, are defined in the Reports 85 (1992) and 102 (1994) of the WMO for all activities within the GAW program and also we did follow rigorously these standard practices. The whole measurement and analytical procedure was laid down in standard operating procedures.

Overall data check: Karin Acker

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	HEIGHT above ground	Height	m	Moeller, Detlev		Geocode
2	DATE/TIME	Date/Time		Moeller, Detlev		Geocode
3	Comment	Comment		Moeller, Detlev		date/time
4	Liquid water content	LWC	g/m³	Kalass, Dieter	Laser diffraction technique, Gerber Particulate Volume Monitor (PVM-100)	detection level 2 mg/m**3
5	Chloride	Cl-	mg/l	Auel, Renate	Ion chromatography	detection level 0.01 mg/l
6	Nitrate	[NO3]-	mg/l	Auel, Renate	Ion chromatography	detection level 0.02 mg/l
7	Sulfate	[SO4]2-	mg/l	Auel, Renate	Ion chromatography	detection level 0.06 mg/l
8	Sodium	Na+	mg/l	Auel, Renate	Ion chromatography	detection level 0.02 mg/l
9	Ammonium	[NH4]+	mg/l	Auel, Renate	Ion chromatography	detection level 0.003 mg/l
10	Potassium	K+	mg/l	Auel, Renate	Ion chromatography	detection level 0.03 mg/l
11	Magnesium	Mg2+	mg/l	Auel, Renate	Ion chromatography	detection level 0.01 mg/l
12	Calcium	Ca2+	mg/l	Auel, Renate	Ion chromatography	detection level 0.02 mg/l
13	pH	pH		Auel, Renate
14	Conductivity, electrical	Cond electr	µS/cm	Auel, Renate		detection level 4 µS/cm

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

19176 data points

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