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Metadata for monitoring activities

Below you find a short overview of monitoring activities, followed by tables with more detailed metadata.

Geographical data


Station name: Villum Research Station, Station Nord.

Coordinates: 81° 36'5.26” N, 16° 39'43.31” W, 24 m ASL

Time zone UTC -4. Polar sunset is 16 October and Polar sunrise 25 February. 

Climate monitoring - overview

Villum Research Station operates a climate station, being situated ca. 2 km outside Station Nord. The climate station measures air temperature, air pressure, air humidity, wind velocity and direction, short wave incoming and outgoing radiation, net radiation and UVB-radiation.  

Two 20 m cores in the ground are established to measure the temperature profile in order to determine; seasonal behaviour, the depth of the active layer and the trend of these over the years to come. 

For further details see the table below: Climate monitoring - details.

Atmospheric monitoring - overview

Link to on-line data for Ozone, Mercury and meteorological parameters.

Current and previous monitoring programme

An extensive number of air pollutants are being measured at Villum Research Station, Station Nord. 

The current measurement programme is a substantial upgrade of an existing air pollution monitoring station at Station Nord. A long-term monitoring programme on air pollution has been maintained by Aarhus University based on funding from the Danish Environmental Protection Agency since 1990. Until 2014 the monitoring was carried out from a small house, Flyger’s Hut, being situated 2 km outside Station Nord. In 2014 and early 2015 the atmospheric monitoring was being moved to new facilities in a 110 m2 observatory with several air inlets being situated 2 km outside Station Nord and c. 500 m from Flyger’s Hut.

Data from the atmospheric monitoring programme are provided free-of-charge to scientists working at Villum Research Station.

Contact persons:

  • Physical characterisation of aerosols: Andreas Massling, Department of Environmental Science, Aarhus University.
  • Offline chemical analyses: Rosanna Bossi, Department of Environmental Science, Aarhus University.
  • Other data: Henrik Skov, Department of Environmental Science, Aarhus University.

For further details see the tables below:

Climate monitoring - details

The table below summarises activities related to climate carried out at Villum Research Station, Station Nord. 

Activities

Data availability

Instruments

Meteorological parameters (by Danish Meteorological Institute)

At least from 1961

Synoptic data

Climate: Wind speed, wind direction, temperature, relative humidity, solar flux (in and out), precipitation, snow depth,

July 2014 - present. 

Link to on-line data

Set up by ASIAQ (Greenland)

2 permafrost cores of 20 m depth with temperature sensors.

July 2014 - present

Set up in collaboration with UNIS

 .

Atmospheric monitoring - details

The table below summarises the air pollution measurements carried out at Villum Research Station, except for persistent organic compounds (see separate table). 

Activities

Data availability

Instruments

Filter pack measurements of SO2, SO42-, NO3- and NH4+

1990- June 2002 and July 2006- present

IC and segmented flow analyser

Filter pack measurements of elements from Al and higher (except Cl, and Hg)

1990- June 2002 and July 2006- present

ICP-MS

O3

1997-2002 and 2006 – present

Link to on-line data

O3 monitor using UV absorption

Gaseous Elemental Mercury (GEM)

August 1999 – 2002 and 2006- present

Link to on-line data

GEM monitor using Cold vapour fluorescence spectroscopy

 

Black Carbon

2008- present

(PSAP, MAAP)

CO

 

July 2006- present

 

CO monitor using IR absorption spectroscopy From 2012  a CO monitor using gas chromatography and a Hg reduction detector

NOx

Jan. 2009 - present

NOx monitor using chemiluminescence

High volume sampling equipped with particle filtre and PUF, XAD, PUF sandwich plug to measure chlorinated pesticides.

 

Brominated flame retardants measured with high volume sampler (same as chlorinated pesticides)

 

Persistent fluorinated compounds measured with a specially designed high volume sampler

 

 

 

July 2006- present

 

July 2006- present

 

 

 

 

January 2007- present                                                                                              

GC-HRMS, LC-MS-MS

CH4 and CO2 gradients with a Picaro

January 2012-present

Cavity ring down method

Particle number size distribution (submicrometer)

July 2010 - present

Custom build Scanning Mobility Particle Sizer (SMPS)  

Particle number size distribution (supermicrometer)

December 2015 - present

GRIMM Optical Particle Counter (OPC)

Scattering coefficients

December 2015 - present

ECOTECH Three Wavelength Nephelometer (NEPH)

“Vertical distribution of particle number” height of cloud cover

January 2012 – Present

Ceilometer CL51

Supplementary data: Air pollution modelling related to Villum Research Station

Aarhus University operates a hemispheric model (DEHM) on a 150 km x150 km grid size which can be nested to a grid size along the costs of Greenland of 50 km x 50 km. It is applied to describe transport to the Arctic. At present the model describes transport of Hg, ?-HCH and selected PCB's into the Arctic region with focus on the interaction between pollution and climate forcing.

Persistent Organic Compounds measured at Villum Research Station - details

The tables below summarise measurements of persistent organic compounds carried out at Villum Research Station, Station Nord.

Sampling is done with a High Volume sampling sucking 500 Litre min-1 through a filter and a PUF-XAD-PUF cartridge.

Chlorinated compounds:

Matrix

Acronym

Full name

Air

HCB

Hexachlorobenzen

Air

a-HCH

a-hexachlorocyclohexane

Air

b-HCH

b-hexachlorocyclohexane

Air

g-HCH (Lindane)

g-hexachlorocyclohexane

Air

d-HCH

d-hexachlorocyclohexane

Air

Heptachlor

Heptachlor

Air

Heptachlor epoxide

Heptachlor epoxide

Air

Aldrin

Aldrin

Air

Dieldrin

Dieldrin

Air

Endrin

Endrin

Air

trans-Chlordane

trans-Chlordane

Air

cis-Chlordane

cis-Chlordane

Air

o,p’-DDT

o,p’-DDT

Air

p,p’-DDT

p,p’-DDT

Air

o,p’-DDE

o,p’-DDE

Air

p,p’-DDE

p,p’-DDE

Air

o,p’-DDD

o,p’-DDD

Air

p,p’-DDD

p,p’-DDD

Air

a-Endosulfan

a-Endosulfan

Air

b-Endosulfan

b-Endosulfan

Air

Endosulfan sulphate

Endosulfan sulphate

Air

trans-Nonachlor

trans-Nonachlor

Air

cis-Nonachlor

cis-Nonachlor

Air

Endrin ketone

Endrin ketone

Air

Metoxychlor

Metoxychlor

*It is not part of the monitoring program but has been measured campaign wise (New Contaminant project).  

Brominated compounds:

Matrix

Acronym

Full name

Air

BDE 17

Polybrominated diphenylether 17

Air

BDE 28

Polybrominated diphenylether 28

Air

BDE 47

Polybrominated diphenylether 47

Air

BDE 66

Polybrominated diphenylether 66

Air

BDE 71

Polybrominated diphenylether 71

Air

BDE 85

Polybrominated diphenylether 85

Air

BDE 99

Polybrominated diphenylether 99

Air

BDE 100

Polybrominated diphenylether 100

Air

BDE 138

Polybrominated diphenylether 138

Air

BDE 153

Polybrominated diphenylether 153

Air

BDE 154

Polybrominated diphenylether 154

Air

BDE 183

Polybrominated diphenylether 183

Air

BDE 180

Polybrominated diphenylether 180

Air

BDE 209

Polybrominated diphenylether 209

Air

a-HBCD

a-Hexabromcyclododecane

Air

β-HBCD

β -Hexabromcyclododecane

Air

γ-HBCD

γ -Hexabromcyclododecane

*Other CAS-numbers for HBCD: 25637-99-4 or 3194-55-6; ¤we do not have this number. 

Perfluoroalkyl substances (PFAS):

Matrix

Acronym

Full name

Air

4:2 FTOH

4:2-fluorotelomer alcohol

Air

6:2 FTOH

6:2-fluorotelomer alcohol

Air

8:2 FTOH

8:2-fluorotelomer alcohol

Air

10:2 FTOH

10:2-fluorotelomer alcohol

Air

N-Me-FOSA

N-methyl-perfluorooctanesulfonamide

Air

N-Et-FOSA

N-ethyl-perfluorooctanesulfonamide

Air

N-Me-FOSE

N-methyl-perfluorooctanesulfonamidoethanol

Air

N-Et-FOSE

N-ethyl-perfluorooctanesulfonamidoethanol

 

 

 

Snow

PFBS

Perfluorobutane sulfonate

Snow

PFHxS

Perfluorohexane sulfonate

Snow

PFHpS

Perfluoroheptane sulfonate

Snow

PFOS

Perfluorooctane sulfonate

Snow

PFDS

Perfluorodecane sulfonate

Snow

PFOSA

Perfluorooctane sulfonamide

Snow

PFHxA

Perfluorohexanoic acid

Snow

PFHpA

Perfluoroheptanoic acid

Snow

PFOA

Perfluorooctanoic acid

Snow

PFNA

Perfluorononanoic acid

Snow

PFDA

Perfluorodecanoic acid

Snow

PFUnA

Perfluoroundecanoic acid

Snow

PFDoA

Perfluorododecanoic acid

Snow

PFTrA

Perfluorotridecanoic acid

Snow

PFTeA

Perfluorotetradecanoic acid