Citation:

PANGAEA.908620

Name: Thickness and properties of sea ice and snow of land-fast sea ice in Atka Bay in 2018
Published: 2019-11-18
License: https://creativecommons.org/licenses/by/4.0/
Keywords: AFIN; Atka Bay; DFG-SPP1158; Sea ice

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Abstract:

Manual measurements of sea ice thickness, sub-ice platelet layer thickness, freeboard, and snow thickness are distributed evenly and repeated along a 25km-long transect across Atka Bay every 2 to 4 weeks. At each measurement location, 5 holes were drilled through the ice in order to determine the aforementioned parameters, one in the center and one in a distance of five meters in each direction, to cover their small-scale spatial variabilities. The measurements have been mainly conducted by the meteorologist (Hanno Müller) and Matthias Maasch, Mirco Czerwonka, Helene Hoffmann of the overwintering team.

Keyword(s):

AFIN; Atka Bay; DFG-SPP1158; Sea ice

Project(s):

Antarctic Fast Ice Network (AFIN)

Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas (SPP1158)

Sea Ice Physics @ AWI (AWI_SeaIce)

Funding:

German Research Foundation (DFG), grant/award no. 5472008 : Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas

Coverage:

Median Latitude: -70.594493 * Median Longitude: -7.772482 * South-bound Latitude: -70.615500 * West-bound Longitude: -8.045700 * North-bound Latitude: -70.574800 * East-bound Longitude: -7.484250

Date/Time Start: 2018-06-13T14:30:00 * Date/Time End: 2018-12-30T15:05:00

Event(s):

ATKA03-2018 (Atka_Ice_Port) * Latitude: -70.574800 * Longitude: -8.045700 * Date/Time Start: 2018-06-13T14:30:00 * Date/Time End: 2018-12-30T11:07:00 * Campaign: (AFIN) * Basis: NEUMAYER III * Method/Device: Ice measurement (ICEM)

ATKA07-2018 (Atka_Ice_Port) * Latitude: -70.582500 * Longitude: -7.944400 * Date/Time Start: 2018-06-13T15:47:00 * Date/Time End: 2018-12-30T11:57:00 * Campaign: (AFIN) * Basis: NEUMAYER III * Method/Device: Ice measurement (ICEM)

ATKA11-2018 (Atka_Ice_Port) * Latitude: -70.592100 * Longitude: -7.817100 * Date/Time Start: 2018-07-26T15:40:00 * Date/Time End: 2018-12-30T12:50:00 * Campaign: (AFIN) * Basis: NEUMAYER III * Method/Device: Ice measurement (ICEM)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Arndt, Stefanie
2	DATE/TIME	Date/Time		Arndt, Stefanie		Geocode – start, UTC
3	DATE/TIME	Date/Time		Arndt, Stefanie		Geocode – end, UTC
4	LATITUDE	Latitude		Arndt, Stefanie		Geocode
5	LONGITUDE	Longitude		Arndt, Stefanie		Geocode
6	Sample code/label	Sample label		Arndt, Stefanie
7	Air temperature at 2 m height	T2	°C	Arndt, Stefanie
8	Temperature, air	TTT	°C	Arndt, Stefanie	Digital thermometer	surface
9	Temperature, ice/snow	t	°C	Arndt, Stefanie	Digital thermometer	Snow surface
10	Temperature, ice/snow	t	°C	Arndt, Stefanie	Digital thermometer	Snow-ice interface
11	Temperature, water	Temp	°C	Arndt, Stefanie	Digital thermometer
12	Sea ice thickness	EsEs	m	Arndt, Stefanie	Ruler stick (RULER)	Center
13	Sub-ice platelet-layer thickness	SIPL	m	Arndt, Stefanie	Ruler stick (RULER)	Center
14	Snow thickness	Snow thick	m	Arndt, Stefanie	Ruler stick (RULER)	Center
15	Freeboard	Freeboard	m	Arndt, Stefanie	Ruler stick (RULER)	Center
16	Comment	Comment		Arndt, Stefanie	Ruler stick (RULER)	Center measurements
17	Sea ice thickness	EsEs	m	Arndt, Stefanie	Ruler stick (RULER)	North
18	Sub-ice platelet-layer thickness	SIPL	m	Arndt, Stefanie	Ruler stick (RULER)	North
19	Snow thickness	Snow thick	m	Arndt, Stefanie	Ruler stick (RULER)	North
20	Freeboard	Freeboard	m	Arndt, Stefanie	Ruler stick (RULER)	North
21	Comment	Comment		Arndt, Stefanie		north measurements
22	Sea ice thickness	EsEs	m	Arndt, Stefanie	Ruler stick (RULER)	East
23	Sub-ice platelet-layer thickness	SIPL	m	Arndt, Stefanie	Ruler stick (RULER)	East
24	Snow thickness	Snow thick	m	Arndt, Stefanie	Ruler stick (RULER)	East
25	Freeboard	Freeboard	m	Arndt, Stefanie	Ruler stick (RULER)	East
26	Comment	Comment		Arndt, Stefanie		east measurements
27	Sea ice thickness	EsEs	m	Arndt, Stefanie	Ruler stick (RULER)	South
28	Sub-ice platelet-layer thickness	SIPL	m	Arndt, Stefanie	Ruler stick (RULER)	South
29	Snow thickness	Snow thick	m	Arndt, Stefanie	Ruler stick (RULER)	South
30	Freeboard	Freeboard	m	Arndt, Stefanie	Ruler stick (RULER)	South
31	Comment	Comment		Arndt, Stefanie		South measurements
32	Sea ice thickness	EsEs	m	Arndt, Stefanie	Ruler stick (RULER)	West
33	Sub-ice platelet-layer thickness	SIPL	m	Arndt, Stefanie	Ruler stick (RULER)	West
34	Snow thickness	Snow thick	m	Arndt, Stefanie	Ruler stick (RULER)	West
35	Freeboard	Freeboard	m	Arndt, Stefanie	Ruler stick (RULER)	West
36	Comment	Comment		Arndt, Stefanie		West measurements
37	Comment	Comment		Arndt, Stefanie		general comment

License:

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

Size:

1167 data points

Data

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

1 Event	2 Date/Time (start, UTC)	3 Date/Time (end, UTC)	4 Latitude	5 Longitude	6 Sample label	7 T2 [°C]	8 TTT [°C] (surface, Digital thermometer)	9 t [°C] (Snow surface, Digital thermom...)	10 t [°C] (Snow-ice interface, Digital t...)	11 Temp [°C] (Digital thermometer)	12 EsEs [m] (Center, Ruler stick)	13 SIPL [m] (Center, Ruler stick)	14 Snow thick [m] (Center, Ruler stick)	15 Freeboard [m] (Center, Ruler stick)	16 Comment (Center measurements, Ruler stick)	17 EsEs [m] (North, Ruler stick)	18 SIPL [m] (North, Ruler stick)	19 Snow thick [m] (North, Ruler stick)	20 Freeboard [m] (North, Ruler stick)	21 Comment (north measurements)	22 EsEs [m] (East, Ruler stick)	23 SIPL [m] (East, Ruler stick)	24 Snow thick [m] (East, Ruler stick)	25 Freeboard [m] (East, Ruler stick)	26 Comment (east measurements)	27 EsEs [m] (South, Ruler stick)	28 SIPL [m] (South, Ruler stick)	29 Snow thick [m] (South, Ruler stick)	30 Freeboard [m] (South, Ruler stick)	31 Comment (South measurements)	32 EsEs [m] (West, Ruler stick)	33 SIPL [m] (West, Ruler stick)	34 Snow thick [m] (West, Ruler stick)	35 Freeboard [m] (West, Ruler stick)	36 Comment (West measurements)	37 Comment (general comment)
ATKA03-2018	2018-06-13T14:30	2018-06-13T15:26	-70.574800	-8.04570	ATKA03	-33.1	-27.5	-15.2	-10.9	-2.8	0.83	0.10	0.18	0.04		0.97	0.00	0.06	0.08		0.93	0.30	0.20	0.06		0.86	0.35	0.24	0.03		4.00		0.22		Bohrpunkt liegt wohl auf senkrechter Scholle, im Feld waren nur 4 m Bohrer mit, das hat nicht gereicht	The salinometer/water thermometer stopped working very early, probably due to too low temperatures. Measurements thus had to be done with different thermometers, which deviated more than 1°C (also non-linear); all measurements therefore not reliable!
ATKA07-2018	2018-06-13T15:47	2018-06-13T16:36	-70.582500	-7.94440	ATKA07	-36.9	-30.4	-12.9	-9.7		0.81	0.17	0.30	0.03		1.02	0.21	0.29	0.10		0.71	0.07	0.32	-0.04		0.77	0.07	0.30	-0.04		0.91	1.07	0.28	0.06		The salinometer/water thermometer stopped working very early, probably due to too low temperatures. Measurements thus had to be done with different thermometers, which deviated more than 1°C (also non-linear); all measurements therefore not reliable!
ATKA03-2018	2018-07-21T10:54	2018-07-21T11:20	-70.574800	-8.04570	ATKA03	-19.8	-19.0	-16.8	-15.9	-2.0	1.18	0.35	0.10	0.06	No conductivity measured	1.33	0.15	0.05	0.11		1.33	0.35	0.02	0.09		1.29	0.89	0.16	0.15		1.16	0.56	0.17	0.13		Close to ATKA11, an ice floe is tilted & frozen in leading to high snowloads at that point. Also at measuring point it seems that the ice is not thermodynamically grown but dynamically. Measuring point might be shifted to more flat areas at the next time
ATKA07-2018	2018-07-21T11:42	2018-07-21T12:03	-70.582500	-7.94440	ATKA07	-19.2	-18.9	-14.9	-11.8	-2.0	1.05	0.52	0.35	0.05		1.36	0.82	0.24	0.12		1.13	0.67	0.35	0.04		1.04	0.48	0.37	0.02		1.03	0.65	0.28	0.01		Close to ATKA11, an ice floe is tilted & frozen in leading to high snowloads at that point. Also at measuring point it seems that the ice is not thermodynamically grown but dynamically. Measuring point might be shifted to more flat areas at the next time
ATKA16-2018	2018-07-21T14:40	2018-07-21T15:07	-70.599250	-7.70185	ATKA16	-19.1	-18.5	-12.9	-10.1	-2.4	0.89	0.87	0.31	-0.02		0.88	0.90	0.23	0.00		0.93	0.80	0.25	0.00		0.89	0.93	0.34	-0.01		0.87	0.75	0.32	-0.01		Close to ATKA11, an ice floe is tilted & frozen in leading to high snowloads at that point. Also at measuring point it seems that the ice is not thermodynamically grown but dynamically. Measuring point might be shifted to more flat areas at the next time
ATKA21-2018	2018-07-21T14:15	2018-07-21T14:43	-70.607333	-7.57800	ATKA21	-22.2	-23.2	-13.4	-9.9		0.92	1.80	0.28	-0.01	No conductivity measured	1.01	1.62	0.39	0.01	No conductivity measured	0.96	1.60	0.26	0.03	No conductivity measured	0.98	1.85	0.30	0.00	No conductivity measured	0.91	1.70	0.32	-0.02	No conductivity measured	Close to ATKA11, an ice floe is tilted & frozen in leading to high snowloads at that point. Also at measuring point it seems that the ice is not thermodynamically grown but dynamically. Measuring point might be shifted to more flat areas at the next time
ATKA24-2018	2018-07-21T13:40	2018-07-21T14:02	-70.615500	-7.48425	ATKA24	-18.7	-20.5	-17.6	-14.9	-2.1	0.96	0.57	0.07	0.08		0.93	0.65	0.08	0.10		0.98	0.40	0.07	0.07		0.96	0.57	0.10	0.07		0.96	0.57	0.06	0.08		Close to ATKA11, an ice floe is tilted & frozen in leading to high snowloads at that point. Also at measuring point it seems that the ice is not thermodynamically grown but dynamically. Measuring point might be shifted to more flat areas at the next time
ATKA11-2018	2018-07-26T15:40	2018-07-26T16:04	-70.592100	-7.81710	ATKA11-2018	-28.8	-29.4	-18.3	-13.5	-2.1	1.17	0.56	0.28	0.01		1.20	0.58	0.25	0.05		1.19	0.59	0.23	0.05		1.21	0.64	0.26	0.04		1.18	0.63	0.26	0.07
ATKA03-2018	2018-08-16T15:00	2018-08-16T15:28	-70.574800	-8.04570	ATKA03	-26.7	-26.9	-23.4	-21.8	-2.2	1.48	0.84	0.05	0.15		1.59	0.67	0.03	0.14		1.42	0.82	0.07	0.11		1.35	0.88	0.18	0.15		1.51	1.06	0.06	0.12
ATKA07-2018	2018-08-16T14:10	2018-08-16T14:38	-70.582500	-7.94440	ATKA07	-28.7	-29.0	-17.2	-12.3	-2.2	1.20	1.39	0.51	0.02		1.45	1.16	0.46	0.04		1.37	1.15	0.35	0.06		1.22	0.95	0.47	0.00		1.21	1.30	0.49	-0.01
ATKA11-2018	2018-08-16T13:30	2018-08-16T16:56	-70.592100	-7.81710	ATKA11-2018	-27.2	-28.7	-16.5	-11.2	-2.2	1.32	1.17	0.58	-0.04		1.33	1.49	0.44	-0.01		1.34	0.69	0.44	-0.01		1.33	1.26	0.45	0.01		1.32	1.17	0.56	-0.05
ATKA16-2018	2018-08-16T12:16	2018-08-16T12:50	-70.599250	-7.70185	ATKA16	-28.2	-28.9	-18.1	-10.4	-2.0	1.04	1.19	0.42	-0.04		1.05	1.15	0.42	-0.03		1.09	1.05	0.36	-0.02		1.01	1.03	0.48	-0.05		0.98	1.22	0.46	-0.08
ATKA21-2018	2018-08-16T11:31	2018-08-16T12:03	-70.607333	-7.57800	ATKA21	-27.4	-29.6	-16.8	-10.6	-2.0	1.06	2.22	0.56	-0.08		1.09	2.24	0.45	-0.04		1.08	2.15	0.57	-0.03		1.13	2.17	0.48	-0.03		1.06	2.11	0.50	-0.08
ATKA24-2018	2018-08-16T10:46	2018-08-16T11:20	-70.615500	-7.48425	ATKA24	-23.4	-25.8	-23.1	-20.9	-2.0	1.20	0.78	0.05	0.11		1.19	0.87	0.07	0.11		1.18	1.02	0.07	0.11		1.18	0.91	0.06	0.11		1.18	1.07	0.05	0.09
ATKA03-2018	2018-09-19T10:45	2018-09-19T11:04	-70.574800	-8.04570	ATKA03	-18.9	-17.6	-17.5	-16.2	-2.2	1.73	1.02	0.10	0.15		1.85	0.78	0.03	0.18		1.57	1.56	0.24	0.19		1.72	0.95	0.18	0.16		1.80	1.46	0.17	0.16
ATKA07-2018	2018-09-19T11:22	2018-09-19T11:45	-70.582500	-7.94440	ATKA07	-16.7	-17.3	-12.0	-8.7	-2.0	1.37	1.71	0.77	-0.10		1.71	1.50	0.69	-0.01		1.67	1.96	0.57	0.14		1.41	1.56	0.79	-0.08		1.34	1.95	0.83	-0.14
ATKA11-2018	2018-09-19T11:55	2018-09-19T12:19	-70.592100	-7.81710	ATKA11-2018	-17.9	-18.1	-13.0	-9.4	-2.3	1.56	1.20	0.57	0.00		1.53	1.40	0.50	0.02		1.60	1.21	0.49	0.03		1.45	1.76	0.61	-0.03		1.48	1.34	0.64	-0.05
ATKA16-2018	2018-09-19T12:27	2018-09-19T12:46	-70.599250	-7.70185	ATKA16	-16.6	-16.9	-11.4	-8.0	-2.0	1.20	1.57	0.61	-0.08		1.25	1.48	0.50	-0.05		1.25	1.41	0.52	-0.06		1.22	1.42	0.55	-0.08		1.19	1.33	0.63	-0.11
ATKA21-2018	2018-09-19T12:59	2018-09-19T13:20	-70.607333	-7.57800	ATKA21	-15.0	-15.9	-12.0	-8.5	-2.1	1.26	2.02	0.61	-0.08		1.32	2.06	0.64	-0.09		1.31	2.17	0.56	-0.07		1.30	2.36	0.66	-0.12		1.23	2.17	0.61	-0.12
ATKA24-2018	2018-09-19T13:30	2018-09-19T13:48	-70.615500	-7.48425	ATKA24	-15.2	-15.0	-15.1	-15.0	-2.2	1.53	0.85	0.04	0.14		1.50	0.74	0.06	0.15		1.53	0.66	0.05	0.14		1.49	0.83	0.06	0.15		1.51	0.66	0.05	0.13
ATKA03-2018	2018-10-11T10:07	2018-10-11T10:31	-70.574800	-8.04570	ATKA03	-24.5	-21.7	-19.1	-17.0	-2.2	1.87	1.13	0.29	0.16		1.99	1.19	0.13	0.14		1.73	1.50	0.30	0.08		1.85	1.00	0.33	0.14		1.91	0.74	0.22	0.11
ATKA07-2018	2018-10-11T10:47	2018-10-11T11:15	-70.582500	-7.94440	ATKA07	-23.7	-22.8	-16.0	-9.5	-2.1	1.49	2.41	0.75	-0.08		1.80	1.88	0.75	0.00		1.38	1.71	0.78	-0.10		1.50	1.80	0.78	-0.08		1.53	1.93	0.72	-0.07
ATKA11-2018	2018-10-11T11:29	2018-10-11T11:51	-70.592100	-7.81710	ATKA11-2018	-23.9	-22.1	-15.7	-10.8	-2.2	1.59	2.03	0.71	-0.03		1.65	1.73	0.66	0.01		1.59	1.79	0.65	-0.04		1.60	1.88	0.76	-0.03		1.60	1.71	0.63	-0.02
ATKA16-2018	2018-10-18T12:15	2018-10-18T12:35	-70.599250	-7.70185	ATKA16			-17.5		-2.3	1.35	1.60	0.63	-0.08		1.37	1.55	0.54	-0.06		1.42	1.65	0.51	-0.06		1.38	1.61	0.74	-0.03		1.31	1.95	0.67	-0.07		Snow temperature measurements were performed with a pyrometer.
ATKA21-2018	2018-10-18T11:30	2018-10-18T11:50	-70.607333	-7.57800	ATKA21			-16.2		-2.2	1.33	3.15	0.63	-0.10		1.65	1.94	0.65	-0.06		1.37	2.33	0.60	-0.05		1.42	2.75	0.60	-0.09		1.32	2.53	0.63	-0.13		Snow temperature measurements were performed with a pyrometer.
ATKA24-2018	2018-10-18T10:53	2018-10-18T11:15	-70.615500	-7.48425	ATKA24	-17.4		-20.0		-2.1	1.73	0.79	0.21	0.15		1.67	0.66	0.10	0.14		1.75	0.58	0.08	0.15		1.70	0.86	0.09	0.15		1.74	0.58	0.16	0.16		Snow temperature measurements were performed with a pyrometer.
ATKA03-2018	2018-11-16T10:15	2018-11-16T11:05	-70.574800	-8.04570	ATKA03	-11.5	-9.7	-11.6	-9.8	-2.0	1.87	3.60	0.23	0.13		2.17	2.89	0.14	0.20		1.92	3.04	0.32	0.12		1.55	4.20	0.42	0.12		2.08	1.62	0.24	0.15
ATKA07-2018	2018-11-16T11:20	2018-11-16T11:50	-70.582500	-7.94440	ATKA07	-10.0	-8.1	-8.6	-6.0	-1.9	1.53	3.41	0.83	-0.11		1.85	4.40	0.73	0.00		1.50	3.29	0.73	-0.07		1.62	2.94	0.76	-0.04		1.67	3.39	0.68	0.00
ATKA11-2018	2018-11-16T12:10	2018-11-16T12:45	-70.592100	-7.81710	ATKA11-2018	-8.2	-8.0	-8.8	-6.4	-1.9	1.48	2.99	0.76	-0.09		1.68	4.31	0.72	-0.07		1.73	2.48	0.74	-0.05		1.68	2.27	0.67	-0.04		1.74	2.32	0.66	-0.06
ATKA16-2018	2018-11-16T12:57	2018-11-16T13:30	-70.599250	-7.70185	ATKA16	-8.2	-8.5	-8.7	-6.4	-2.0	1.50	2.35	0.55	-0.01		1.53	2.02	0.50	-0.05		1.49	2.27	0.61	-0.05		1.46	2.12	0.63	-0.03		1.47	2.19	0.59	-0.01
ATKA21-2018	2018-11-16T13:50	2018-11-16T14:10	-70.607333	-7.57800	ATKA21	-8.7	-8.1	-8.4	-6.3	-2.0	1.53	3.25	0.74	-0.04		1.55	3.02	0.80	-0.01		1.58	2.93	0.72	-0.01		1.51	2.72	0.67	-0.09		1.55	4.65	0.68	0.00
ATKA24-2018	2018-11-16T14:30	2018-11-16T14:45	-70.615500	-7.48425	ATKA24	-8.6	-7.6	-8.6	-9.0	-2.0	1.83	1.34	0.16	0.17	brown slush	1.83	1.32	0.20	0.18	brown slush	1.82	1.12	0.09	0.16	brown slush	1.79	1.45	0.13	0.18	brown slush	1.85	1.16	0.16	0.15	brown slush
ATKA03-2018	2018-12-07T13:22	2018-12-07T13:42	-70.574800	-8.04570	ATKA03	-2.2	-1.6	-4.4	-5.0	-1.9	1.96	2.27	0.27	0.10	brown	2.23	2.11	0.29	0.19	brown	2.00	2.34	0.32	0.08	brown	1.92	2.72	0.38	0.04	brown	2.04	2.58	0.27	0.10	brown
ATKA07-2018	2018-12-07T12:37	2018-12-07T13:06	-70.582500	-7.94440	ATKA07	-0.5	-2.6	-4.2	-4.2	-1.9	1.65	3.86	0.76	-0.05		1.83	3.88	0.81	-0.05		1.58	4.17	0.81	-0.06		1.61	3.95	0.80	-0.10		1.72	4.16	0.73	-0.01
ATKA11-2018	2018-12-07T11:59	2018-12-07T12:22	-70.592100	-7.81710	ATKA11-2018	-1.5	-1.5	-4.9	-4.8	-1.9	1.78	3.85	0.86	-0.09		1.69	3.09	0.84	-0.15		1.71	3.27	0.86	-0.15		1.78	4.00	0.84	-0.08		1.72	3.04	1.00	-0.16
ATKA16-2018	2018-12-07T11:30	2018-12-07T11:47	-70.599250	-7.70185	ATKA16	-2.0	-3.1	-4.2	-4.2	-2.0	1.57	2.49	0.53	0.01	wet snow/ice interface	1.53	2.54	0.51	-0.01	wet snow/ice interface	1.50	2.66	0.60	-0.06	wet snow/ice interface	1.48	2.61	0.70	-0.06	wet snow/ice interface	1.48	2.34	0.60	-0.04	wet snow/ice interface
ATKA21-2018	2018-12-07T10:58	2018-12-07T11:16	-70.607333	-7.57800	ATKA21	-3.8	-2.9	-4.5	-4.3	-1.9	1.60	3.62	0.72	-0.03		1.66	3.61	0.65	0.00		1.58	3.35	0.65	-0.03		1.69	3.54	0.64	-0.01		1.54	3.81	0.66	-0.05
ATKA24-2018	2018-12-07T10:28	2018-12-07T10:45	-70.615500	-7.48425	ATKA24	-2.2	-2.2	-3.9	-4.1	-1.9	1.88	1.67	0.15	0.17	brown sluh	1.87	1.96	0.29	0.19	brown slush	1.88	1.88	0.03	0.16	brown slush	1.82	2.05	0.10	0.16	brown slush	1.94	1.39	0.17	0.17	brown slush
ATKA03-2018	2018-12-30T10:10	2018-12-30T11:07	-70.574800	-8.04570	ATKA03			-2.4	-3.7	-2.0	2.16	2.41	0.71	0.01	brown slush	2.26	2.28	0.63	0.02	brown slush	2.08	2.92	0.59	-0.04		1.96	2.90	0.55	0.01		2.10	2.32	0.58	0.00
ATKA07-2018	2018-12-30T11:23	2018-12-30T11:57	-70.582500	-7.94440	ATKA07			-1.8	-3.3	-1.9	1.72	3.84	0.90	-0.13		2.03	3.22	1.00	-0.07		1.74	4.84	0.90	-0.10		1.73	4.04	1.00	-0.18		1.79	4.38	1.00	-0.15
ATKA11-2018	2018-12-30T12:18	2018-12-30T12:50	-70.592100	-7.81710	ATKA11-2018			-1.9	-3.5	-1.9	1.86	3.16	0.85	-0.10		1.86	3.67	0.85	-0.09		1.93	2.92	0.79	-0.07		1.79	2.96	0.88	-0.17		1.79	3.30	0.91	-0.17
ATKA16-2018	2018-12-30T13:00	2018-12-30T13:23	-70.599250	-7.70185	ATKA16			-1.4	-2.8	-1.9	1.52	2.33	0.66	-0.07	brown water	1.57	2.42	0.49	-0.03	brown water	1.56	2.64	0.62	-0.06		1.48	2.36	0.71	-0.08		1.52	2.26	0.58	-0.04	brown water
ATKA21-2018	2018-12-30T13:45	2018-12-30T14:25	-70.607333	-7.57800	ATKA21			-2.1	-3.3	-1.9	1.70	4.30	0.85	-0.04		1.57	3.90	0.95	-0.15		1.70	3.90	0.95	-0.02		1.82	3.49	0.90	-0.06		1.68	5.02	0.80	-0.02
ATKA24-2018	2018-12-30T14:40	2018-12-30T15:05	-70.615500	-7.48425	ATKA24			-1.4	-2.4	-2.0	2.00	1.95	0.40	0.10	brown algae	1.90	1.90	0.50	0.06	brown algae	1.87	2.73	0.40	0.12	brown algae	1.84	2.01	0.07	0.12	brown algae	1.97	1.73	0.40	0.09	brown algae