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Steinfeldt, Reiner; Rhein, Monika (2015): Noble gases measured on water bottle samples during Maria S. Merian cruise MSM18/3 [dataset]. Institut für Umweltphysik, Universität Bremen, PANGAEA, https://doi.org/10.1594/PANGAEA.845702

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Related to:
Sültenfuß, Jürgen; Roether, Wolfgang; Rhein, Monika (2009): The Bremen mass spectrometric facility for the measurement of helium isotopes, neon, and tritium in water. Isotopes in Environmental and Health Studies, 45(2), 83-95, https://doi.org/10.1080/10256010902871929
Funding:
German Research Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
Coverage:
Median Latitude: -1.741411 * Median Longitude: -7.489786 * South-bound Latitude: -5.029000 * West-bound Longitude: -15.006000 * North-bound Latitude: 2.001000 * East-bound Longitude: -0.000167
Date/Time Start: 2011-07-01T23:22:00 * Date/Time End: 2011-07-19T07:07:00
Minimum DEPTH, water: 7.26 m * Maximum DEPTH, water: 61.73 m
Event(s):
MSM18/3_745-1 (CTD34)  * Latitude: -4.000833 * Longitude: -15.000333 * Date/Time: 2011-07-01T23:22:00 * Campaign: MSM18/3 * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO) * Comment: at depth
MSM18/3_746-1 (CTD35)  * Latitude: -2.999833 * Longitude: -15.001500 * Date/Time: 2011-07-02T06:37:00 * Campaign: MSM18/3 * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO) * Comment: at depth
MSM18/3_747-1 (CTD36)  * Latitude: -2.000333 * Longitude: -15.000333 * Date/Time: 2011-07-02T13:41:00 * Campaign: MSM18/3 * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO) * Comment: at depth
Comment:
The eastern equatorial Atlantic is on of the world's most important upwelling regions. As vertical velocities are too small to be measured directly, they have to be inferred by indirect methods. One of these techniques is to measure the helium isotope disequilibrium in and below the mixed layer. The Central Water masses below the surface are typically enriched in the isotope helium-3, so upwelling can be determined by an enhanced helium-3/helium-4 ratio within the mixed layer.
140 helium samples in copper tubes have been taken from the Niskin bottles at CTD stations, mainly from the mixed layer and the upper 200 m of the water column. These samples will be analysed with respect to helium isotopes (helium-3, helium-4) and neon at the high resolution mass spectrometer at the institute for environmental physics, university of Bremen in 2012. In a first step, the gas has to be extracted from the water stored in the copper tubes, and this gas will then be transferred to the mass spectrometer. The helium isotope data are measured in the framework of the project SOPRAN to infer upwelling rates in the equatorial band of the Atlantic.
See "Further details:" for information on measurement technique.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventSteinfeldt, Reiner
Date/Time of eventDate/TimeSteinfeldt, Reiner
Latitude of eventLatitudeSteinfeldt, Reiner
Longitude of eventLongitudeSteinfeldt, Reiner
Elevation of eventElevationmSteinfeldt, Reiner
DEPTH, waterDepth watermSteinfeldt, ReinerGeocode
Pressure, waterPressdbarSteinfeldt, Reiner
HeliumHenmol/kgSteinfeldt, ReinerMass spectrometer, noble gas, MAP215-50http://www.noblegas.uni-bremen.de
δ Helium-3δ3He%Steinfeldt, Reiner
10 NeonNenmol/kgSteinfeldt, Reiner
11 Profile IDProfile IDSteinfeldt, Reiner
12 Bottle numberBottleSteinfeldt, Reiner
Size:
639 data points

Data

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


Event

Date/Time

Latitude

Longitude

Elevation [m]

Depth water [m]

Press [dbar]

He [nmol/kg]

δ3He [%]
10 
Ne [nmol/kg]
11 
Profile ID
12 
Bottle
MSM18/3_745-1 2011-07-01T23:22-4.0008-15.00039.449.51.6766-1.49006.66553423
MSM18/3_745-12011-07-01T23:22-4.0008-15.000318.3918.51.6715-1.29816.64493421
MSM18/3_745-12011-07-01T23:22-4.0008-15.000318.7918.91.6899-1.56506.65783422
MSM18/3_745-12011-07-01T23:22-4.0008-15.000338.8739.11.6931-1.06366.83153418
MSM18/3_746-1 2011-07-02T06:37-2.9998-15.001512.2312.31.6843-1.95656.71033524
MSM18/3_746-12011-07-02T06:37-2.9998-15.001512.3312.41.6902-1.63576.73053523
MSM18/3_746-12011-07-02T06:37-2.9998-15.001521.2721.41.6872-1.56416.73343522
MSM18/3_746-12011-07-02T06:37-2.9998-15.001541.9542.21.7081-0.40127.02743518
MSM18/3_747-1 2011-07-02T13:41-2.0003-15.00038.858.91.6834-1.39376.70643623
MSM18/3_747-12011-07-02T13:41-2.0003-15.000318.4918.61.7001-1.26676.83833621
MSM18/3_748-2 2011-07-02T21:57-0.9983-15.00089.9410.01.6788-1.45606.69933923
MSM18/3_748-22011-07-02T21:57-0.9983-15.000810.0410.11.6870-1.44396.74533924
MSM18/3_748-22011-07-02T21:57-0.9983-15.000819.7819.91.6838-1.91276.72783920
MSM18/3_750-1 2011-07-03T22:55-0.0003-14.99839.259.31.6940-1.80456.70874424
MSM18/3_750-12011-07-03T22:55-0.0003-14.998310.1410.21.6755-1.37256.71564423
MSM18/3_750-12011-07-03T22:55-0.0003-14.998319.0919.21.6826-1.55586.75564422
MSM18/3_750-12011-07-03T22:55-0.0003-14.998320.0820.21.6820-0.99436.74054421
MSM18/3_750-12011-07-03T22:55-0.0003-14.998340.7641.01.6903-1.18636.78404418
MSM18/3_751-1 2011-07-04T06:521.0007-15.006011.8311.91.70256.70114524
MSM18/3_751-12011-07-04T06:521.0007-15.006021.9722.11.6887-1.38896.70784522
MSM18/3_751-12011-07-04T06:521.0007-15.006041.6541.91.7022-1.25496.78244518
MSM18/3_751-12011-07-04T06:521.0007-15.006061.7362.11.7448-0.51297.12984515
MSM18/3_752-1 2011-07-04T14:012.0010-15.00359.349.41.7009-1.67316.69344623
MSM18/3_752-12011-07-04T14:012.0010-15.00359.349.41.6936-1.55506.67214624
MSM18/3_752-12011-07-04T14:012.0010-15.003521.0721.21.6950-1.29146.69714621
MSM18/3_752-12011-07-04T14:012.0010-15.003521.5721.71.6871-1.59676.67064622
MSM18/3_752-12011-07-04T14:012.0010-15.003540.9541.21.7072-1.73736.82414619
MSM18/3_754-2 2011-07-06T17:39-4.9995-10.00039.649.71.6961-1.53556.75904823
MSM18/3_754-22011-07-06T17:39-4.9995-10.000319.6819.81.6764-1.77536.70114822
MSM18/3_754-22011-07-06T17:39-4.9995-10.000339.2639.51.6909-1.15526.73804818
MSM18/3_754-22011-07-06T17:39-4.9995-10.000361.6262.01.7072-0.84346.92944815
MSM18/3_755-2 2011-07-07T01:47-3.9995-10.00089.749.81.7039-1.16436.79504923
MSM18/3_755-22011-07-07T01:47-3.9995-10.00089.849.91.7028-1.33816.79644924
MSM18/3_755-22011-07-07T01:47-3.9995-10.000819.5819.71.6754-1.45346.70914921
MSM18/3_755-22011-07-07T01:47-3.9995-10.000819.6819.81.6829-1.47026.74434922
MSM18/3_755-22011-07-07T01:47-3.9995-10.000839.7640.01.6802-1.45506.76034918
MSM18/3_756-1 2011-07-07T09:05-2.9997-10.000711.0311.11.7051-1.63836.76385023
MSM18/3_756-12011-07-07T09:05-2.9997-10.000711.2311.31.7002-1.40866.75945024
MSM18/3_756-12011-07-07T09:05-2.9997-10.000721.9722.11.6992-1.11106.92265022
MSM18/3_758-1 2011-07-07T17:47-1.9998-9.99958.858.91.7013-1.68006.82515323
MSM18/3_758-12011-07-07T17:47-1.9998-9.999519.0919.21.6967-1.72776.77605310
MSM18/3_758-12011-07-07T17:47-1.9998-9.999538.7739.01.7437-0.09697.2136536
MSM18/3_759-1 2011-07-09T01:07-0.9987-10.00029.349.41.6778-1.78406.73116024
MSM18/3_759-12011-07-09T01:07-0.9987-10.000218.8919.01.6876-1.41286.75986022
MSM18/3_759-12011-07-09T01:07-0.9987-10.000238.6738.91.7139-0.35376.99726018
MSM18/3_760-1 2011-07-09T08:150.0013-9.86539.849.91.7110-1.11246.80886121
MSM18/3_760-12011-07-09T08:150.0013-9.86539.9410.01.6794-1.59306.75226122
MSM18/3_760-12011-07-09T08:150.0013-9.865319.7819.91.70396.83186119
MSM18/3_764-1 2011-07-09T19:111.2620-9.80909.549.61.7087-1.42046.77716224
MSM18/3_764-12011-07-09T19:111.2620-9.80909.649.71.6818-1.24786.79046223
MSM18/3_764-12011-07-09T19:111.2620-9.809039.4639.71.7046-1.41536.93756218
MSM18/3_764-12011-07-09T19:111.2620-9.809058.5558.91.71520.11467.08056215
MSM18/3_765-4 2011-07-11T14:13-5.0290-5.00008.558.61.6831-1.66456.74486324
MSM18/3_765-42011-07-11T14:13-5.0290-5.00009.159.21.6804-1.34666.67056323
MSM18/3_765-42011-07-11T14:13-5.0290-5.000018.5918.71.6756-1.68716.65446320
MSM18/3_765-42011-07-11T14:13-5.0290-5.000039.9640.21.70336.72076317
MSM18/3_766-2 2011-07-11T20:44-3.9995-5.000710.5410.61.6998-1.54716.78096424
MSM18/3_766-22011-07-11T20:44-3.9995-5.000739.9640.21.7722-0.74547.13446417
MSM18/3_766-22011-07-11T20:44-3.9995-5.000759.8460.21.7205-0.46367.10006414
MSM18/3_767-1 2011-07-12T03:57-2.9977-5.00009.349.41.6766-1.47946.72456523
MSM18/3_767-12011-07-12T03:57-2.9977-5.00009.449.51.7042-1.96366.81526524
MSM18/3_767-12011-07-12T03:57-2.9977-5.000019.3819.51.6834-1.45806.78986521
MSM18/3_767-12011-07-12T03:57-2.9977-5.000038.5738.81.71800.08707.07476517
MSM18/3_768-2 2011-07-12T11:05-1.9992-5.00039.059.11.7039-1.04996.87426723
MSM18/3_768-22011-07-12T11:05-1.9992-5.000318.9919.11.7129-1.07626.91776721
MSM18/3_768-22011-07-12T11:05-1.9992-5.000338.5738.81.7053-0.82016.95226717
MSM18/3_768-22011-07-12T11:05-1.9992-5.000358.9459.31.7212-0.16647.11596714
MSM18/3_769-2 2011-07-12T19:54-0.9963-5.00489.349.41.6965-1.35676.83887124
MSM18/3_769-22011-07-12T19:54-0.9963-5.00489.549.61.7011-1.07336.77287123
MSM18/3_769-22011-07-12T19:54-0.9963-5.004819.2919.41.7175-1.47476.94227119
MSM18/3_769-22011-07-12T19:54-0.9963-5.004819.4819.61.7336-1.33536.95567120
MSM18/3_769-22011-07-12T19:54-0.9963-5.004839.5639.81.7273-0.98907.04067116
MSM18/3_770-1 2011-07-14T01:300.0010-5.00139.259.31.67696.54577723
MSM18/3_770-12011-07-14T01:300.0010-5.00139.549.61.6984-2.00576.61477724
MSM18/3_770-12011-07-14T01:300.0010-5.001319.1919.31.6904-1.27676.60777721
MSM18/3_770-12011-07-14T01:300.0010-5.001339.1739.41.71466.92567717
MSM18/3_770-12011-07-14T01:300.0010-5.001358.4558.81.7228-0.04837.00937714
MSM18/3_771-1 2011-07-14T09:040.9998-5.00339.649.71.6986-1.57206.69297823
MSM18/3_771-12011-07-14T09:040.9998-5.00339.749.81.6801-1.63966.59927824
MSM18/3_771-12011-07-14T09:040.9998-5.003319.0919.21.6928-1.20016.63177821
MSM18/3_771-12011-07-14T09:040.9998-5.003319.2919.41.6928-1.69966.61037820
MSM18/3_771-12011-07-14T09:040.9998-5.003338.5738.81.7357-1.65006.91887817
MSM18/3_772-1 2011-07-16T00:50-4.9985-0.00189.059.11.7047-1.98786.74497923
MSM18/3_772-12011-07-16T00:50-4.9985-0.00189.349.41.6972-1.35466.73197924
MSM18/3_772-12011-07-16T00:50-4.9985-0.001819.1919.31.6770-1.56136.71877921
MSM18/3_772-12011-07-16T00:50-4.9985-0.001860.4360.81.7211-0.42177.03857914
MSM18/3_773-4 2011-07-16T10:16-4.0092-0.01129.249.31.7035-1.52986.83568223
MSM18/3_773-42011-07-16T10:16-4.0092-0.011219.4819.61.69206.83158221
MSM18/3_773-42011-07-16T10:16-4.0092-0.011219.9820.11.7007-0.86206.83388220
MSM18/3_773-42011-07-16T10:16-4.0092-0.011239.2639.51.7134-0.06867.01328217
MSM18/3_774-1 2011-07-16T15:51-2.9992-0.00029.649.71.69456.77328323
MSM18/3_774-12011-07-16T15:51-2.9992-0.00029.649.71.69286.73448324
MSM18/3_774-12011-07-16T15:51-2.9992-0.000219.4819.61.6901-1.21216.80788321
MSM18/3_774-12011-07-16T15:51-2.9992-0.000258.9459.31.7386-0.09777.11538314
MSM18/3_775-1 2011-07-16T22:42-1.9992-0.00028.959.01.7082-1.68366.82398423
MSM18/3_775-12011-07-16T22:42-1.9992-0.00029.349.41.7247-1.41986.82638424
MSM18/3_775-12011-07-16T22:42-1.9992-0.000218.7918.91.7226-1.18366.8601849
MSM18/3_775-12011-07-16T22:42-1.9992-0.000219.5819.71.7245-1.28676.87268410
MSM18/3_775-12011-07-16T22:42-1.9992-0.000238.9739.21.71566.9051846
MSM18/3_776-1 2011-07-18T05:44-1.0002-0.00057.267.31.7327-1.52036.88749123
MSM18/3_776-12011-07-18T05:44-1.0002-0.000519.5819.71.7301-1.31866.99829122
MSM18/3_776-12011-07-18T05:44-1.0002-0.000539.1739.41.7433-0.87456.98019118
MSM18/3_778-1 2011-07-18T19:12-0.0012-0.0005-493018.6918.81.7372-0.61867.02449223
MSM18/3_778-12011-07-18T19:12-0.0012-0.0005-493038.3738.61.7506-0.56747.16039221
MSM18/3_778-12011-07-18T19:12-0.0012-0.0005-493048.8149.11.7536-0.71977.14539220
MSM18/3_778-12011-07-18T19:12-0.0012-0.0005-493058.3558.71.7635-0.72597.12779219
MSM18/3_779-1 2011-07-19T07:071.0005-0.00257.757.81.7208-1.12036.81329324
MSM18/3_779-12011-07-19T07:071.0005-0.002537.1837.41.7409-0.61517.14749318