Citation:

PANGAEA.921759

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Abstract:

Using the Antarctic Sea Ice Processes and Climate (ASPeCt) protocol, Antarctic sea ice observations were conducted aboard the the SA Agulhas II in July 2019. These sea ice observations took place during the Southern oCean seAsonaL Experiment (SCALE) research expedition.

Coverage:

Median Latitude: -57.299964 * Median Longitude: 0.167106 * South-bound Latitude: -58.183333 * West-bound Longitude: -0.245556 * North-bound Latitude: -56.401389 * East-bound Longitude: 0.832500

Date/Time Start: 2019-07-26T13:00:00 * Date/Time End: 2019-07-28T20:00:00

Event(s):

AGULII201907-track (SCALE-track) * Latitude Start: -51.167400 * Longitude Start: 2.392600 * Latitude End: -56.595900 * Longitude End: 0.452150 * Date/Time Start: 2019-07-23T13:40:00 * Date/Time End: 2019-07-28T00:00:00 * Campaign: (SCALE) * Basis: S. A. Agulhas II * Method/Device: Underway cruise track measurements (CT)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DATE/TIME	Date/Time		Hepworth, Ehlke		Geocode
2	LATITUDE	Latitude		Hepworth, Ehlke		Geocode
3	LONGITUDE	Longitude		Hepworth, Ehlke		Geocode
4	Ice concentration	Ice conc	tenths	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	total
5	Ice concentration	Ice conc	tenths	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	primary sea ice
6	Ice type	Ice type	code	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	primary sea ice
7	Sea ice thickness	EsEs	m	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	primary sea ice
8	Floe size	Floe size	code	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	primary sea ice
9	Ice concentration	Ice conc	tenths	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	secondary sea ice
10	Ice type	Ice type	code	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	secondary sea ice
11	Sea ice thickness	EsEs	m	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	secondary sea ice
12	Floe size	Floe size	code	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	secondary sea ice
13	Ice concentration	Ice conc	tenths	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	tertiary sea ice
14	Ice type	Ice type	code	Hepworth, Ehlke	Sea ice observation according to ASPeCt protocol	tertiary sea ice
15	Temperature, water	Temp	°C	Hepworth, Ehlke
16	Temperature, air	TTT	°C	Hepworth, Ehlke
17	Wind speed	ff	m/s	Hepworth, Ehlke
18	Wind direction	dd	deg	Hepworth, Ehlke
19	Cloudiness	Clouds	okta	Hepworth, Ehlke	Meteorological observation according to ASPeCt protocol
20	Visibility	Visibility	code	Hepworth, Ehlke	Meteorological observation according to ASPeCt protocol
21	Weather	Weather	code	Hepworth, Ehlke	Meteorological observation according to ASPeCt protocol
22	Comment	Comment		Hepworth, Ehlke

License:

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

Size:

330 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Date/Time	2 Latitude	3 Longitude	4 Ice conc [tenths] (total, Sea ice observation ac...)	5 Ice conc [tenths] (primary sea ice, Sea ice obse...)	6 Ice type [code] (primary sea ice, Sea ice obse...)	7 EsEs [m] (primary sea ice, Sea ice obse...)	8 Floe size [code] (primary sea ice, Sea ice obse...)	9 Ice conc [tenths] (secondary sea ice, Sea ice ob...)	10 Ice type [code] (secondary sea ice, Sea ice ob...)	11 EsEs [m] (secondary sea ice, Sea ice ob...)	12 Floe size [code] (secondary sea ice, Sea ice ob...)	13 Ice conc [tenths] (tertiary sea ice, Sea ice obs...)	14 Ice type [code] (tertiary sea ice, Sea ice obs...)	15 Temp [°C]	16 TTT [°C]	17 ff [m/s]	18 dd [deg]	19 Clouds [okta] (Meteorological observation ac...)	20 Visibility [code] (Meteorological observation ac...)	21 Weather [code] (Meteorological observation ac...)	22 Comment
2019-07-26T13:00:00	-56.40138889	0.288611111	0											1.1839	-5.3	7.9	350.4	6	94	10	Tomtom camera starts recording
2019-07-26T14:00:00	-56.68583333	0.241944444	10	6	30		100	2	90		300	2	12	1.1839	-5.5	8.6	205.4
2019-07-26T15:00:00	-57.05250000	0.240000000	3	3	30		100							1.1459	-5.0	12.5	335.1	5	94	61	Melting pancake ice
2019-07-26T16:00:00	-57.00111111	-0.052500000	10	8	30		100	1	10			1	90	2.4084	-4.8	8.5	290.7				stopped at 15h58. Tomtom shows great footage of the swells. It went dark before 17h00.
2019-07-26T23:00:00	-57.23750000	0.251944444	10	1	30		100							0.8207	-12.7	14.4	221.9
2019-07-27T01:00:00	-57.19444444	-0.228888889	10	9	30		100							1.4653	-16.5	14.2	233.9	5	94	45
2019-07-27T02:00:00	-57.32083333	0.075555556	0											1.5565	-14.7	17.8	256.6
2019-07-27T03:00:00	-57.46555556	0.048055556	10	9	30		100	1	10					0.9220	-15.2	13.3	251.6	5	94	45	There is not a lot of change in the ratio of pancake to frazil ice it stays relativily the same just the size and thickness that changes from time to time
2019-07-27T04:00:00	-57.59583333	0.043333333	10	9	30		100	1	10					1.4333	-16.5	15.0	236.6				The ice is cracking like it does in summer!
2019-07-27T05:00:00	-57.60000000	0.060833333	9	9	30	0.30	100							1.4063	-17.4	14.0	255.8
2019-07-27T06:00:00	-57.69972222	0.015833333	1	60	30	0.40	500	9	30		400			1.0288	-15.9	15.4	241.8	4	97	3	10% water - assuming water as t's dark.
2019-07-27T07:00:00	-57.84222222	-0.016111111	10	10	30	0.25	400							1.0188	-16.9	14.5	220.8				Some water inbetween, but <10%. Sun went up just after 7am
2019-07-27T08:00:00	-57.78472222	-0.047500000	9	9	30	0.35	400							0.5711	-18.1	10.8	216.3				Patches of open water
2019-07-27T09:00:00	-58.18333333	-0.143611111	10	9	60	0.50	600	1	40	0.001	200			-0.0870	-18.9	10.6	196.3	4	96	10
2019-07-27T10:00:00	-58.15555556	-0.060555556	10	10	60		700							4.0418	-19.4	8.9	194.9	4	96	10
2019-07-27T17:00:00	-58.09583333	-0.038055556	10	10	60		700								-20.0	13.6	194.0				Sun has set. Around this time ship went stationary for a while.
2019-07-27T18:00:00	-57.90750000	-0.245555556	10	10	60		500								-20.0	13.1	208.6	7	90	12
2019-07-27T19:00:00	-57.79722222	-0.072222222	8	7	60		500	1	30		400				-20.1	15.7	206.1
2019-07-27T20:00:00	-57.62472222	-0.026666667	6	5	60			1	30		400				-19.8	12.9	196.7				changed quikly to 90 per cent ice
2019-07-27T21:00:00	-57.59444444	0.004444444	10	10	30		400								-18.9	12.3	193.8	6	90	12
2019-07-28T04:00:00	-57.38638889	0.146111111	6	6	30	0.40	400								-17.7	12.2	228.2	5	97	1	occasional polynya
2019-07-28T05:00:00	-57.26805556	0.081944444	9	8	30		400	1	90		300				-17.1	11.9	228.5	4	97	1	Stopped at a station.
2019-07-28T07:00:00	-57.28277778	0.235000000	10	10	30	0.30	400								-15.2	12.5	243.6				Note that there was <10% water between pancakes.
2019-07-28T09:00:00	-56.89555556	0.392500000	8	8	30		400								-13.0	12.1	265.2	5	95	60
2019-07-28T14:00:00	-56.74694444	0.451388889	10	9	30		400	1	10						-6.8	17.5	321.0				<10% brash
2019-07-28T15:00:00	-56.84472222	0.475833333	10	9	30		400	1	10						-6.2	16.1	305.4	7	93	63	Ship has started moving. <10% of brash present.
2019-07-28T16:00:00	-56.80305556	0.699444444	0												-5.8	16.2	311.5				ship has stopped again. In a polynya.
2019-07-28T17:00:00	-56.85972222	0.462222222	10	8	30		400	1	10			1	90		-2.6	19.9	325.8				started moving, ice not turning over, small pncakes 2-3 m
2019-07-28T18:00:00	-56.75277778	0.435277778	10	1	30		400	7	40		400	2	10		-4.8	17.9	317.0	5	96	20	some water between
2019-07-28T19:00:00	-56.63500000	0.629166667	0												-4.2	22.1	291.8				going through band (from ~19h00 - 19h20). Ice environment has been the same in all bands - melting pancakes with brash and frazil.
2019-07-28T20:00:00	-56.58361111	0.832500000	0												-3.9	20.7	298.8	5	96	20	only bits of brash and frazil