| Contributors | Affiliation | Role |
|---|---|---|
| Wakeham, Stuart | Skidaway Institute of Oceanography (SkIO) | Principal Investigator |
| Hedges, John | University of Washington (UW) | Co-Principal Investigator |
| Lee, Cindy | Stony Brook University (SUNY Stony Brook) | Co-Principal Investigator |
| Chandler, Cynthia L. | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
See Platform deployments for cruise specific documentation
Note: MS-1, MS-2, MS-3, MS-4, MS-5 in published article are equivalent to J1, J2, J3, J4, J5 in the online data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902
| File |
|---|
sedtrap_lipid.csv (Comma Separated Values (.csv), 27.86 KB) MD5:09f5e3c50de5c35d1e8730493f855b8e Primary data file for dataset ID 2593 |
| Parameter | Description | Units |
| site | Arabian Sea site designation | |
| mooring | Mooring identification | |
| trap_type | WM= wide mouth particle interceptor (xs area 0.33 m2) NM= narrow mouth particle interceptor (xs area 0.017 m2) IRS=indented rotating sphere valve in line C=sample carousel in line NVC=No Valve (and no carousel) Control | |
| deploy | Deployment number | |
| depth_trap | Depth of trap | meters |
| date_set | Date of trap deployment | YYYYMMDD |
| lat | Latitude | decimal degrees |
| lon | Longitude | decimal degrees |
| carousel | Identification number of sample carousel on multi-trap arrays 1 = carousel #1 2 = carousel #2 3 = carousel #1 and #2 combined | |
| cup | Sample cup number (position) in carousel | |
| date_open | Date sample cup opened | YYYYMMDD |
| time_open | Time sample cup opened | hhmm |
| days_open | Elapsed time sample cup collected particle flux | days |
| sample_id | Unique analytical ID# given to each sample | |
| flux_tot | Particulate mass flux | milligrams/m2/day |
| lipids_neut | Total of chromatographically-resolved compounds in the neutral lipid fraction | micrograms/m2/day |
| lipids_acid | Total of chromatographically-resolved compounds in the acidic fraction | micrograms/m2/day |
| lipids_tot | Sum of neutral and acidic fractions | micrograms/m2/day |
| Dataset-specific Instrument Name | IRS Sediment Trap |
| Generic Instrument Name | Sediment Trap - IRS |
| Dataset-specific Description | Indented Rotary Sphere Sediment Trap |
| Generic Instrument Description | Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. The Indented Rotating Sphere (IRS) Sediment Trap is described in Peterson et al. (Field evaluation of a valved sediment trap. 1993. Limnology and Oceanography, 38, pp. 1741-1761 and Novel techniques for collection of sinking particles in the ocean and determining their settling rates. 2005. Limnology and Oceanography Methods 3, pp. 520-532). The IRS trap consists of four cylindrical modules; a particle interceptor, an IRS valve; a skewed funnel, and an eleven sample carousel (designated IRSC trap). The key to the trap design is the patented IRS valve located between the particle interceptor and particle accumulator portions of the trap. The valve and carousel are regulated by a TattleTale IVA (manufactured by Onset Computer Corp.) microprocessor and custom software. The IRS sediment trap was specifically designed to exclude zooplankton (Trull et al. 2008. Deep-Sea Research II v.55 pp. 1684-1695). |
| Website | |
| Platform | R/V Thomas G. Thompson |
| Start Date | 1994-10-28 |
| End Date | 1994-11-21 |
| Description | Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | R/V Thomas G. Thompson |
| Start Date | 1995-05-03 |
| End Date | 1995-05-22 |
| Description | Sediment Trap Servicing, Coring, Process 3 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | R/V Thomas G. Thompson |
| Start Date | 1995-12-31 |
| End Date | 1996-01-16 |
| Description | Sediment Trap Recovery Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | JGOFS Sediment Trap |
| Start Date | 1994-11-11 |
| End Date | 1995-04-30 |
| Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 17.690 ° N
Longitude = 57.852 ° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | JGOFS Sediment Trap |
| Start Date | 1995-05-17 |
| End Date | 1995-12-24 |
| Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 17.690 ° N
Longitude = 57.852 ° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | JGOFS Sediment Trap |
| Start Date | 1994-11-11 |
| End Date | 1995-04-30 |
| Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 17.200° N
Longitude = 59.600° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | JGOFS Sediment Trap |
| Start Date | 1995-05-17 |
| End Date | 1995-12-24 |
| Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 17.200° N
Longitude = 59.600° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | JGOFS Sediment Trap |
| Start Date | 1994-11-11 |
| End Date | 1995-04-30 |
| Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 15.985° N
Longitude = 61.500° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
| Website | |
| Platform | JGOFS Sediment Trap |
| Start Date | 1995-05-17 |
| End Date | 1995-12-24 |
| Description | U.S. JGOFS Arabian Sea Sediment Trap Mooring
Latitude = 15.985° N
Longitude = 61.500° E
Note: MS-1, MS-2, MS-3, MS-4, MS-5 are equivalent to J1, J2, J3, J4, J5 in the data files
Honjo, S., J. Dymond, W. Prell, V. Ittekot. 1999. Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep Sea Research II. 46: 1859-1902 Methods & Sampling PI: Stuart Wakeham of: Skidaway Institute of Oceanography dataset: Deep sea sediment trap particle flux and lipid data project/cruise: Arabian Sea set: TTN-041, serviced: TTN-047, recovered: TTN-055 ship: Thomas Thompson Organic geochemistry deep sea sediment trap particle flux and composition data Drs. Stuart Wakeham, John Hedges and Cindy Lee, principal investigators US JGOFS Arabian Sea 1994-1996 PI notes and methodology: Sediment trap arrays -------------------- 1. Organic geochemistry sediment trap arrays were deployed on the WHOI-OSU sediment trap moorings at 3 of the 5 mooring sites, 1, 3, and 4. See Honjo et al 1999 Monsoon-controlled export fluxes to the interior of the Arabian Sea. Deep-Sea Research Part II: Topical Studies in Oceanography. 46, 1859-1902. 2. Arrays deployed during the winter monsoon consisted of 2 NM-IRSC traps, 1 WM-IRS trap, and 1 NVC trap. 3. Arrays deployed during the summer monsoon consisted of 1 NM-IRSC traps, 1 WM-IRSC trap, 1 NM-IRS trap, and 1 NVC trap. 4. Non-carousel traps (IRS and NVC traps) collected material from the time of deployment until the time of retrieval. 5. Closing date and time of each cup is the opening date and time of each succeeding cup. 6. The IRS valved sediment trap design is described in Peterson et al. 1993. Field evaluation of a valved sediment trap. Limnology and Oceanography, 38, 1741-1761. 7. Photographs of the IRS traps and actual ASPS deployments are available at http://boto.ocean.washington.edu/aog/traps/irs_traps.html Sample treatment ---------------- Samples were treated similarly to those described in Hernes et al 2000 (submitted DSR) with the exception that only HgCl2 was used to poison the samples. All sample splits were made using a McClean WSD-10 wet sample splitter. Lipid analyses were done according to S. G. Wakeham, J. I. Hedges, C. Lee, M. L. Peterson and P. J. Hernes. (1997) Compositions and transport of lipid biomarkers through the water column and surficial sediments of the Equatorial Pacific Ocean. Deep-Sea Res. II 44: 2131-2162. |
The U.S. Arabian Sea Expedition which began in September 1994 and ended in January 1996, had three major components: a U.S. JGOFS Process Study, supported by the National Science Foundation (NSF); Forced Upper Ocean Dynamics, an Office of Naval Research (ONR) initiative; and shipboard and aircraft measurements supported by the National Aeronautics and Space Administration (NASA). The Expedition consisted of 17 cruises aboard the R/V Thomas Thompson, year-long moored deployments of five instrumented surface buoys and five sediment-trap arrays, aircraft overflights and satellite observations. Of the seventeen ship cruises, six were allocated to repeat process survey cruises, four to SeaSoar mapping cruises, six to mooring and benthic work, and a single calibration cruise which was essentially conducted in transit to the Arabian Sea.
The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.
The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).