Citation:

PANGAEA.927460

Name: Snow water equivalent retrievals from SnowMicroPen data from MOSAiC Leg 1 - Leg 3
Published: 2021-02-04
License: https://creativecommons.org/licenses/by/4.0/
Keywords: force signals; SMP; snowmicropen; snow water equivalent; SWE

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Abstract:

The dataset includes computed snow water equivalent (SWE) in mm and depth (m) of the snowpack for MOSAiC leg 1 - 3, derived from SnowMicroPen (SMP) penetration force signals. The data origins from the devices SMP49 and SMP31 that have been used during MOSAiC leg 1 - 3. In a first step, force signal measurements that are known to be incorrect or that are known to be related to device function tests, have been discarded. In a second step, the snow surface was detected in the force signal and the signal located vertically above the surface has been discarded for each measurement. The snow depth was determined by where the SMP stopped measuring, i.e. at a depth where the overload signal of 41 N (SMP49) or 40 N (SMP31), was reached, respectively. Hence, the determined depth in the file does not necessarily tell the exact position of the snow-ice interface. In a third step, density of the snowpack was computed using the statistical model from Proksch et al. (2015). The coefficients used in the model are taken from King et al. (2020) where they have been explicitly fitted for Arctic sea ice. In a last step, snowpack density was vertically averaged for each measurement and multiplied with the determined snow depth to obtain the SWE. Besides snow depth and SWE, each measurement in the csv file was assigned a timestamp (UTC), a DSHIP device operation ID, a measuring location label and geographic coordinates (DD format), as long as the SMP-internal GPS receiver was running and the antenna was receiving a GPS position signal.

Keyword(s):

force signals; SMP; snowmicropen; snow water equivalent; SWE

Other version:

Macfarlane, Amy R; Schneebeli, Martin; Dadic, Ruzica; Wagner, David N; Arndt, Stefanie; Clemens-Sewall, David; Hämmerle, Stefan; Hannula, Henna-Reetta; Jaggi, Matthias; Kolabutin, Nikolai; Krampe, Daniela; Lehning, Michael; Matero, Ilkka; Nicolaus, Marcel; Oggier, Marc; Pirazzini, Roberta; Polashenski, Chris; Raphael, Ian; Regnery, Julia; Shimanchuck, Egor; Smith, Madison M; Tavri, Aikaterini (2021): Snowpit SnowMicroPen (SMP) force profiles collected during the MOSAiC expedition. PANGAEA, https://doi.org/10.1594/PANGAEA.935554 (Raw data)

Project(s):

Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)

Funding:

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC

Coverage:

Median Latitude: 86.271528 * Median Longitude: 59.026873 * South-bound Latitude: 83.419945 * West-bound Longitude: 12.043333 * North-bound Latitude: 88.579346 * East-bound Longitude: 128.009277

Date/Time Start: 2019-10-25T04:54:12 * Date/Time End: 2020-05-12T12:24:59

Event(s):

PS122/1_4-10 * Latitude: 85.436912 * Longitude: 128.146859 * Date/Time: 2019-10-25T01:15:00 * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Snow pit (SNOWPIT) * Comment: Close to met city

PS122/1_5-5 * Latitude: 85.541385 * Longitude: 126.423526 * Date/Time: 2019-10-28T01:00:00 * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Snow pit (SNOWPIT) * Comment: Close to met city; Slight snowfall, drifting snow, blowing snow

PS122/1_5-28 * Latitude: 85.765642 * Longitude: 123.540397 * Date/Time: 2019-10-31T08:18:00 * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Snow pit (SNOWPIT) * Comment: SMP31; Cc Snowpit: T, Salinity, SWE, SMP31 : at remote sensing site

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Wagner, David N
2	DATE/TIME	Date/Time		Wagner, David N		Geocode
3	LATITUDE	Latitude		Wagner, David N		Geocode
4	LONGITUDE	Longitude		Wagner, David N		Geocode
5	Snow height	Snow h	m	Wagner, David N	SnowMicroPen	Snow depth
6	Snow water equivalent	SWE	mm	Wagner, David N	SnowMicroPen
7	Location	Location		Wagner, David N

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)

Size:

9021 data points

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