Citation:

j.dsr.2014.03.005

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Abstract:

In this study we reconstruct sea surface temperatures (SSTs) using two lipid-based biomarker proxies (alkenone unsaturation index UK'37 and TEX86 index based on glycerol dibiphytanyl glycerol tetraethers) in 36 surface sediment samples from the Indonesian continental margin off west Sumatra and south of Java and the Lesser Sunda Islands. Comparison of measured temperatures (World Ocean Atlas 09) to reconstructed temperatures suggests that SST-UK'37 reflects the SE monsoon SST in the upwelling area south of Java and the Lesser Sunda Islands, whereas Temp-TEXH86 estimates are up to 2°C lower than SST-UK'37. This offset is possibly related to either one or a combination of two factors: i) the depth habitats of the source organisms; ii) different seasonal production and/ or seasonality of export associated with phytoplankton blooming triggered by primary productivity. In the non-upwelling area off west Sumatra, the alkenone-based SSTs are cooler than measured temperatures during the entire year, likely due to the reduced sensitivity of the UK'37 proxy beyond 28°C. However, reconstructed temperatures based on TEXH86 are consistent with mean annual SST, implying that the Temp-TEXH86 reflects the mean annual SST in the non-upwelling area of the tropical Eastern Indian Ocean.

Project(s):

Center for Marine Environmental Sciences (MARUM)

Coverage:

Median Latitude: -4.745234 * Median Longitude: 105.518550 * South-bound Latitude: -9.729167 * West-bound Longitude: 96.660333 * North-bound Latitude: 1.678500 * East-bound Longitude: 121.002525

Date/Time Start: 2005-08-06T04:29:00 * Date/Time End: 2005-09-07T11:02:00

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m

Event(s):

GeoB10008-4 * Latitude: -0.954833 * Longitude: 98.259833 * Date/Time: 2005-08-06T04:29:00 * Elevation: -934.0 m * Campaign: (PABESIA) * Basis: * Method/Device: MultiCorer (MUC) * Comment: 6/6 4/4

GeoB10010-1 * Latitude: -1.178167 * Longitude: 97.981500 * Date/Time: 2005-08-06T11:14:00 * Elevation: -2937.0 m * Campaign: (PABESIA) * Basis: * Method/Device: MultiCorer (MUC) * Comment: 6/6 4/4

GeoB10014-1 * Latitude: 1.678500 * Longitude: 96.981000 * Date/Time: 2005-08-08T01:30:00 * Elevation: -1158.0 m * Campaign: (PABESIA) * Basis: * Method/Device: MultiCorer (MUC) * Comment: 6/6 4/4

Comment:

DEPTH, sediment/rock = 0 - 1 cm

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Alkenone per unit sediment mass	Alkenone/sed	µg/g	Chen, Wenwen		Conc. Alkenone (C37)
7	Alkenone, per unit mass total organic carbon	Alkenone/TOC	µg/g	Chen, Wenwen		Conc. Alkenone (C37)
8	Alkenone, unsaturation index UK'37	UK'37		Chen, Wenwen
9	Sea surface temperature, annual mean	SST (1-12)	°C	Chen, Wenwen	Calculated from UK37 (Conte et al., 2006)	SST-UK'37
10	Glycerol dialkyl glycerol tetraethers	GDGTs	µg/g	Chen, Wenwen		Conc. GDGTs
11	Glycerol dialkyl glycerol tetraethers, per unit mass total organic carbon	GDGTs/TOC	µg/g	Chen, Wenwen		Conc. GDGTs
12	Tetraether index of 86 carbon atoms	TEX86		Chen, Wenwen
13	Temperature, water, interpolated	Temp interp	°C	Chen, Wenwen	Calculated from TEX86 (Kim et al., 2010)	TEXH86
14	Branched and isoprenoid tetraether index	BIT		Chen, Wenwen
15	n-Alkane C24	C24	ng/g	Chen, Wenwen
16	n-Alkane C25	C25	ng/g	Chen, Wenwen
17	n-Alkane C26	C26	ng/g	Chen, Wenwen
18	n-Alkane C27	C27	ng/g	Chen, Wenwen
19	n-Alkane C28	C28	ng/g	Chen, Wenwen
20	n-Alkane C29	C29	ng/g	Chen, Wenwen
21	n-Alkane C30	C30	ng/g	Chen, Wenwen
22	n-Alkane C31	C31	ng/g	Chen, Wenwen
23	n-Alkane C32	C32	ng/g	Chen, Wenwen
24	n-Alkane C33	C33	ng/g	Chen, Wenwen
25	n-Alkane C34	C34	ng/g	Chen, Wenwen
26	n-Alkane C35	C35	ng/g	Chen, Wenwen
27	Carbon Preference Index	CPI		Chen, Wenwen
28	Average chain length	ACL		Chen, Wenwen
29	n-Alkane, C31/C29 ratio	C31/C29		Chen, Wenwen
30	Sum n-alkanes C29-C33	C29-C33	ng/g	Chen, Wenwen

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

878 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	6 Alkenone/sed [µg/g]	7 Alkenone/TOC [µg/g]	8 UK'37	9 SST (1-12) [°C]	10 GDGTs [µg/g]	11 GDGTs/TOC [µg/g]	12 TEX86	13 Temp interp [°C]	14 BIT	15 C24 [ng/g]	16 C25 [ng/g]	17 C26 [ng/g]	18 C27 [ng/g]	19 C28 [ng/g]	20 C29 [ng/g]	21 C30 [ng/g]	22 C31 [ng/g]	23 C32 [ng/g]	24 C33 [ng/g]	25 C34 [ng/g]	26 C35 [ng/g]	27 CPI	28 ACL	29 C31/C29	30 C29-C33 [ng/g]
GeoB10008-4	-0.954833	98.259833	-934	0.35	28.80	0.978	27.9	3.01	251.22	0.708	28.3	0.05	46.57	30.00	21.81	31.15	28.36	56.06	50.76	81.65	32.81	48.16	10.37	14.26	1.54	29.70	1.46	185.87
GeoB10010-1	-1.178167	97.981500	-2937	0.12	24.87	0.956	27.2	1.31	261.68	0.710	28.4	0.08	41.24	28.12	15.74	38.35	22.65	43.62	20.16	71.54	25.09	44.36	8.83	16.86	2.13	29.58	1.64	159.52
GeoB10014-1	1.678500	96.981000	-1158	0.61	38.33	0.977	27.9	5.91	369.43	0.717	28.7	0.07	177.81	96.83	84.63	82.67	71.21	115.48	91.05	200.20	61.40	131.01	21.42	32.72	1.59	29.59	1.73	446.69
GeoB10015-1	1.632500	96.886167	-1464	0.47	29.45	0.972	27.7	5.60	349.91	0.714	28.6	0.06	252.37	110.32	75.98	92.80	74.03	125.89	74.78	206.10	68.62	137.32	20.54	33.60	1.69	29.50	1.64	469.31
GeoB10016-2	1.596500	96.660333	-1900	0.16	12.92	0.963	27.4	1.95	162.23	0.720	28.9	0.06	110.91	84.31	59.89	72.54	56.07	81.33	43.36	105.75	37.97	54.83	10.01	14.76	1.61	28.87	1.30	241.91
GeoB10022-3	-0.008300	98.014181	-704	0.69	22.83	0.969	27.6	5.38	179.41	0.700	28.0	0.04	49.00	32.38	36.97	36.27	37.33	81.39	48.09	115.78	28.78	53.37	5.55	12.81	1.82	29.76	1.42	250.54
GeoB10024-3	-0.768167	99.268167	-1381	0.34	21.56	0.911	25.9	3.71	231.67	0.720	28.8	0.07	59.65	48.31	31.59	41.32	25.20	75.40	58.87	125.83	33.06	61.30	5.61	12.31	1.99	29.63	1.67	262.53
GeoB10025-3	-0.674333	99.123167	-1149	0.32	19.73	0.980	27.9	5.31	332.18	0.715	28.6	0.05	74.09	48.64	42.18	34.33	28.55	71.35	57.54	136.81	34.56	79.16	11.75	18.32	1.84	29.88	1.92	287.32
GeoB10026-2	-0.944000	99.521333	-1641	0.43		0.986	28.1	6.89		0.705	28.2	0.04	56.58	42.70	23.82	39.98	30.69	84.62	43.56	132.43	33.67	79.50	10.23	20.80	2.34	29.88	1.56	296.55
GeoB10027-3	-0.808833	99.653000	-875	0.37		0.957	27.3	4.48		0.707	28.3	0.06	75.95	64.04	15.44	33.18	24.33	55.23	30.03	90.26	19.78	43.19	4.12	8.82	2.39	29.11	1.63	188.68
GeoB10028-4	-0.696667	99.763000	-522	0.63	27.41	0.946	26.9	9.44	410.34	0.720	28.8	0.04	100.42	45.15	25.89	55.56	50.70	108.38	42.20	172.35	47.99	118.32	20.19	36.64	2.27	30.05	1.59	399.05
GeoB10029-3	-1.495833	100.126333	-974	0.25	11.94	0.973	27.7	5.05	240.69	0.713	28.6	0.04	55.34	34.26	23.27	43.24	27.72	72.32	36.23	98.30	21.99	41.11	4.09	10.03	2.16	29.48	1.36	211.73
GeoB10031-3	-1.698833	99.603167	-1671	0.33	19.40	0.855	24.2	5.71	335.97	0.711	28.5	0.06	322.49	66.14	33.19	42.83	38.19	91.98	64.15	156.56	40.51	101.05	13.19	22.07	1.67	29.80	1.70	349.59
GeoB10032-1	-1.011111	99.011342	-1758	0.49		0.974	27.8	4.03		0.706	28.3	0.07	87.57	41.44	22.36	37.04	27.23	77.77	48.46	140.66	32.05	83.04	11.00	20.96	2.22	29.98	1.81	301.47
GeoB10033-5	-1.009386	99.015872	-1755	0.22	9.91	0.971	27.7	5.79	262.99	0.703	28.1	0.04	131.01	53.98	34.34	45.13	43.49	91.03	66.05	134.89	39.52	83.66	12.36	24.91	1.69	29.73	1.48	309.58
GeoB10034-3	-4.164833	101.499000	-995	0.12	11.00	0.959	27.3	2.34	212.47	0.694	27.7	0.06	80.14	58.38	35.64	95.17	10.16	91.40	29.70	125.76	28.60	76.94	9.43	22.73	3.19	29.30	1.38	294.10
GeoB10036-3	-5.338833	103.657167	-1502	0.12	10.52	0.974	27.8	0.78	71.23	0.697	27.9	0.22	63.21	44.78	26.68	60.75	42.80	117.24	47.14	167.39	42.74	87.43	12.21	20.21	2.46	29.80	1.43	372.06
GeoB10037-2	-5.008008	103.009322	-2016	0.12	20.34	0.957	27.3	1.54	256.39	0.689	27.6	0.19	109.59	53.77	25.18	59.13	46.65	148.16	75.13	231.71	59.18	138.94	23.81	41.48	2.37	30.09	1.56	518.81
GeoB10038-3	-5.937167	103.246333	-1891	0.06	14.95	0.966	27.5	0.23	58.08	0.677	27.0	0.14	45.33	19.52	13.91	27.00	23.71	42.17	20.94	54.67	15.75	30.40	4.99	8.88	1.82	29.57	1.30	127.24
GeoB10039-3	-5.868333	103.294167	-1799	0.09	22.79	0.978	27.9	0.55	137.14	0.672	26.8	0.06	51.82	14.43	5.93	15.05	13.29	27.48	14.83	45.03	13.20	28.78	5.48	10.55	1.90	29.90	1.64	101.29
GeoB10040-3	-6.476167	102.859333	-2605	0.13	25.19	0.953	27.1	0.70	140.78	0.673	26.9	0.04	37.40	14.81	8.88	19.23	13.25	25.73	17.09	37.70	16.82	24.91	5.44	9.73	1.65	29.63	1.47	88.34
GeoB10041-3	-6.274000	103.008500	-1540	0.06	12.19	0.946	26.9	0.56	111.66	0.664	26.4	0.04
GeoB10043-2	-7.005147	105.000972	-2170	0.22	21.97	0.875	24.8	2.00	199.75	0.714	28.6	0.07	65.49	24.28	22.94	34.56	30.78	58.59	26.73	96.01	36.58	66.57	11.68	20.66	1.85	30.04	1.64	221.17
GeoB10044-3	-8.499833	109.016333	-3346	0.18	17.98	0.943	26.9	1.14	114.33	0.677	27.0	0.13	75.33	56.93	64.96	68.68	56.76	116.19	60.99	181.99	54.76	140.56	24.56	48.35	1.98	29.99	1.57	438.74
GeoB10047-1	-9.308833	109.016333	-1780	0.11	6.23	0.944	26.9	0.98	57.76	0.662	26.3	0.04	80.77	39.30	14.36	31.09	25.07	52.50	29.39	98.00	23.99	69.57	9.81	22.55	2.25	29.88	1.87	220.07
GeoB10049-5	-8.784667	110.496667	-1289	0.36	32.51	0.944	26.9	2.76	251.18	0.662	26.3	0.06	101.88	53.51	49.89	56.44	48.51	103.28	62.34	176.45	48.94	145.85	19.33	53.68	2.03	30.14	1.71	425.58
GeoB10050-1	-8.784667	110.496667	-1289	0.20	48.77	0.847	24.0	1.41	351.94	0.663	26.4	0.02	36.17	13.32	10.39	15.19	11.64	29.87	16.42	55.34	11.79	42.95	4.10	11.68	2.35	30.27	1.85	128.16
GeoB10058-1	-8.683833	112.637500	-1113	0.37	19.49	0.929	26.4	5.49	288.89	0.660	26.2	0.05	41.45	42.30	34.32	57.05	35.83	99.00	41.97	113.12	22.04	53.96	4.22	15.98	2.36	29.43	1.14	266.08
GeoB10059-1	-8.678167	112.868000	-1370	0.28	18.82	0.936	26.6	5.24	349.56	0.651	25.9	0.05	55.11	52.77	31.92	58.75	39.05	128.18	53.29	191.36	40.52	138.65	11.88	42.95	2.91	30.07	1.49	458.19
GeoB10061-5	-9.729167	113.024167	-2170	0.28	20.11	0.950	27.0	2.88	205.70	0.650	25.8	0.03	63.29	28.84	17.10	42.29	28.49	77.64	34.30	125.29	24.11	67.08	4.29	14.46	2.59	29.93	1.61	270.01
GeoB10063-5	-9.646000	118.150000	-2501	0.28	16.64	0.949	27.0	7.77	457.19	0.636	25.2	0.01	348.84	66.11	21.57	52.84	31.44	139.65	55.74	227.76	42.61	137.74	10.69	39.62	2.55	30.02	1.63	505.15
GeoB10064-5	-9.539333	118.300500	-2033	0.53	29.47	0.954	27.2	8.36	464.18	0.634	25.0	0.01	97.43	33.50	15.39	59.97	26.69	146.01	42.75	242.03	36.32	139.58	11.07	34.88	3.77	30.27	1.66	527.62
GeoB10066-6	-9.006558	118.009594	-1632	0.36	16.51	0.935	26.6	4.56	207.19	0.640	25.4	0.02	70.40	47.57	28.64	57.83	21.68	123.58	40.37	197.94	28.74	94.05	6.78	18.94	3.44	29.89	1.60	415.57
GeoB10067-5	-9.149000	119.290500	-1136	0.45	29.76	0.943	26.8	4.67	311.36	0.647	25.7	0.03	22.07	19.42	30.38	31.67	14.66	93.41	29.34	130.37	18.47	62.93	2.70	14.64	3.24	30.10	1.40	286.71
GeoB10068-1	-9.009922	121.002525	-2011	0.26	12.82	0.945	26.9	3.95	197.36	0.651	25.9	0.02	219.60	82.41	46.96	49.66	37.16	114.81	41.74	185.18	34.27	93.58	13.47	35.19	2.21	29.60	1.61	393.57
GeoB10069-4	-9.595000	120.915833	-1249	1.01	44.11	0.962	27.4	11.30	491.52	0.634	25.1	0.01	53.23	30.05	12.40	47.17	24.59	141.31	37.79	202.77	26.62	93.88	5.64	25.24	4.07	30.10	1.43	437.96