Acceptance and utilization of LTER data requires that:
(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
(3) A copy of any resultant publications should be sent to:
Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543
| Dataset URLs: | METADATA: HTML, Rich Text, XML(EML compliant) DATA: Comma Delimited, Excel file with Metadata and data | |||||||||||||||||||||
| Dataset ID: | EST-PR-NUT.03 | |||||||||||||||||||||
| Dataset Title: | Water-column nutrient and particulate transects along the Parker River Estuary. | |||||||||||||||||||||
| Investigator 1: | ||||||||||||||||||||||
| First Name: | Charles | |||||||||||||||||||||
| Last Name: | Hopkinson | |||||||||||||||||||||
| Address line 1: | Ecosystems Center | |||||||||||||||||||||
| Address line 2: | MBL | |||||||||||||||||||||
| Address line 3: | 7 MBLSt | |||||||||||||||||||||
| City: | Woods Hole | |||||||||||||||||||||
| State: | MA | |||||||||||||||||||||
| Zip Code: | 02543 | |||||||||||||||||||||
| Country: | USA | |||||||||||||||||||||
| Associate Investigators: | Hap Garritt, Ishi Buffam, Justin LeBlanc, Nat Weston, Greg Peterson, Josh Goldstein, Corey Lawrence, William Lee, Aaron Strong | |||||||||||||||||||||
| Keywords: | LTER, PIE, Plum Island Ecosystems, Massachusetts, Parker River, water column, ammonium, nitrate, phosphate, carbon, nutrients, temperature, secchi, nitrogen, phosphorus, suspended solids, particulate, isotope, light extinction, chlorophyll, phaeopigment, conductivity, salinity | |||||||||||||||||||||
| Abstract: | Water chemistry including nutrient concentrations for various forms of N, P, C, as well as suspended sediments and light extinction coefficients, was determined from bi-annual nutrient transects along the Plum Island Sound estuary from the Parker River Dam to the mouth of the sound. Grab samples were taken at 11 sites along a 24 km transect from the dam to the mouth of the estuary. These samples have generally been collected in Spring and Fall and are done in conjunction with metabolism transects measuring dissolved oxygen levels. The Spring and Fall transects correspond to the high-flow, pre-growth season in April and the low-flow, post-growth season in September. | |||||||||||||||||||||
| Contact: | Plum Island Ecosystems LTER Information Manager The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole, MA 02543 Phone (508) 289 7485 Email: pie_im@mbl.edu Online URL: http://ecosystems.mbl.edu/PIE/ |
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| DATA FILE INFORMATION: | ||||||||||||||||||||||
| Data File URL | http://ecosystems.mbl.edu/PIE/data/EST/data/EST-PR-NUT.dat | |||||||||||||||||||||
| Data File Name | EST-PR-NUT | |||||||||||||||||||||
| Beginning Date | 6/16/1994 | |||||||||||||||||||||
| End Date | 4/15/2008 | |||||||||||||||||||||
| Number of Data Records | 453 | |||||||||||||||||||||
| Other Files to Reference | ||||||||||||||||||||||
| Availability Status | Type 1 | |||||||||||||||||||||
| Quality Control Information | ||||||||||||||||||||||
| Maintenance Description | on going data collection | |||||||||||||||||||||
| Log of Changes: | 01) updated to EML level 4-5 | |||||||||||||||||||||
| 02) updated data through spring 2007. 9/24/2007 | ||||||||||||||||||||||
| 03) added flag data parameters | ||||||||||||||||||||||
| RESEARCH LOCATION: | Site 1 | Site 2 | Site 3 | Site 4 | Site 5 | Site 6 | Site 7 | Site 8 | Site 9 | Site 10 | Site 11 | Site 12 | Site 13 | Site 14 | Site 15 | Site 16 | Site 17 | Site 18 | Site 19 | Site 20 | Site 21 | |
| Geographic Description | WAT-PR-Parker Dam | EST-PR-0 | EST-PR-4 | EST-PR-6 | EST-PR-8 | EST-PR-12 | EST-PR-15 Middle Rd | EST-PR-16 | EST-PR-17 Rt1 | EST-PR-18 | EST-PR-20 Mill | EST-PR-21 RR | EST-PR-22 | EST-PR-23 Rt1A | EST-PR-24 | EST-PR-25 | EST-SO-Nelson | EST-SO-Buoy | EST-SO-IBYC | EST-SO-Spindle | EST-SO-Offshore | |
| Location Bounding Box | ||||||||||||||||||||||
| West Bounding Coordinate | ||||||||||||||||||||||
| East Bounding Coordinate | ||||||||||||||||||||||
| North Bounding Coordinate | ||||||||||||||||||||||
| South Bounding Coordinate | ||||||||||||||||||||||
| OR if single point location | ||||||||||||||||||||||
| Latitude | 42.67770213 | 42.75085508 | 42.75174265 | 42.74829383 | 42.75219747 | 42.75697423 | 42.75890398 | 42.75708039 | 42.75965806 | 42.76247293 | 42.75472052 | 42.75552712 | 42.76258164 | 42.76241138 | 42.76177168 | 42.75701283 | 42.74716149 | 42.7274965 | 42.70978014 | 42.697826 | 42.70544185 | |
| Longitude | -70.83784394 | -70.92796269 | -70.91691665 | -70.91495895 | -70.91020899 | -70.90897971 | -70.90094097 | -70.89690988 | -70.89170367 | -70.88417006 | -70.87582063 | -70.86666078 | -70.85821174 | -70.84765737 | -70.83675555 | -70.82331615 | -70.82008701 | -70.80569481 | -70.79483658 | -70.78356249 | -70.74185558 | |
| Elevation | ||||||||||||||||||||||
| TAXONOMIC COVERAGE: | |
| Taxonomic Protocols | |
| Organisms studied | |
| Methods: | EXPERIMENTAL DESIGN AND METHODS: For all dates during 1994, samplings were made within 2 hours of high tide, except for samples that have a station designation of "low", which were collected within 2 hours of low tide. For all other dates, samples were collected Salinity was measured using a refractometer or calculated from conductivity. Conductivity was measured using a Hydrolab H2O probe with a Scout 2 Water Quality Data System. Temperature was measured using the Hydrolab H2O probe or a field thermometer. Conductivity and temperature have also been measured using a YSI Sonde probe since 2004. A secchi disk was used to obtain the secchi depth, which was considered to be the shallowest depth at which black and white sections of the disk were indistinguishable. During 1994, approximately 10 liters of water were collected in an HDPE carboy. 1 liter polycarbonate bottles were used for later water collections. In the lab, the water was filtered through a GFF filter within 3 hours of collection, and preserved immediately for later analysis of dissolved materials, and filters preserved for later analysis of particulate materials. For details on analytical procedures, see Analytical Methods. NOTES AND COMMENTS: Samples for NH4 analysis were filtered and preserved in the field, immediately upon collection, for all transects from 3/94 to 8/94. For the July 11, 2000 transect, water samples for nutrient analysis were collected at specific salinities, rather than at the designated stations. For the September 11, 2001 transect, water samples for nutrient analysis were collected at specific salinities corresponding to the water masses in which the metabolism measurements were made during the dusk transect on September 10, 2001. Sampling at specific salinities has been done consistently since the April 2006 transect. Contact Chuck Hopkinson (chopkins@mbl.edu) for more details on sampling. |
| Variable Name | Variable Description | Units | Measurement Scale | Code Information | Number Type | DateTime Format | Missing Value Code | Missing Value Code Explanation |
| DATE | date of sampling (dd-mmm-yyyy) | datetime | dd-mmm-yyyy | blank cell | ||||
| TIME | time of sampling (hh:mm - 24hr) | datetime | hh:mm | blank cell | ||||
| Flag_TIME | data quality flag for TIME | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| STATION ID | identity of station sampled | nominal | blank cell | |||||
| STATION NAME KM | name of station sampled in kilometer space | nominal | blank cell | |||||
| Flag_STATION NAME KM | data quality flag for STATION NAME KM | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| STATE X | x coordinates (meters) in MA state plane NAD 83 | meter | interval | real | blank cell | |||
| Flag_STATE X | data quality flag for STATE X | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| STATE Y | y coordinates (meters) in MA state plane NAD 83 | meter | interval | real | blank cell | |||
| Flag_STATE Y | data quality flag for STATE Y | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| LAT | Latitude in NAD 83 geographic coordinates (decimal degrees) | degree | interval | real | blank cell | |||
| Flag_LAT | data quality flag for LAT | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| LON | Longitude in NAD 83 geographic coordinates (decimal degrees) | degree | interval | real | blank cell | |||
| Flag_LON | data quality flag for LON | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DIST | distance upstream from mouth of estuary (km), where appropriate | kilometer | interval | real | blank cell | |||
| Flag_DIST | data quality flag for DIST | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| TIDE | tide stage, "high" within 2 hrs of high tide, "low" within 2 hrs of low tide | nominal | blank cell | |||||
| Flag_TIDE | data quality flag for TIDE | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| SAL | salinity (ppt) | partsPerThousand | interval | real | blank cell | |||
| Flag_SAL | data quality flag for SAL | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| COND | specific conductivity (mS/cm) | millisiemensPerCentimeter | ratio | real | blank cell | |||
| Flag_COND | data quality flag for COND | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| TEMP | temperature (oC) | celsius | interval | real | blank cell | |||
| Flag_TEMP | data quality flag for TEMP | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| SECCHI | secchi depth (cm) | centimeter | ratio | real | blank cell | |||
| Flag_SECCHI | data quality flag for SECCHI | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| NH4 | NH4+ (ammonium) concentration (umol N/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_NH4 | data quality flag for NH4 | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| NO3 | NO3- + NO2- (nitrate+nitrite) concentration (umol N/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_NO3 | data quality flag for NO3 | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| PO4 | PO4--- (soluble reactive phosphate) concentration (umol P/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_PO4 | data quality flag for PO4 | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| TDN | total dissolved nitrogen conc. (umol N/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_TDN | data quality flag for TDN | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DON | dissolved organic nitrogen conc. (umol N/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_DON | data quality flag for DON | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| TDP | total dissolved phosphorus (umol P/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_TDP | data quality flag for TDP | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DOP | dissolved organic phosphorus (umol P/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_DOP | data quality flag for DOP | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| PP | particulate phosphorous (µmol P/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_PP | data quality flag for PP | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DOC | dissolved organic carbon conc. (umol C/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_DOC | data quality flag for DOC | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DO13C | delta 13C, isotope ratio 13C/12C of dissolved organic carbon | partsPerThousand | ratio | real | blank cell | |||
| Flag_DO13C | data quality flag for DO13C | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| SS | suspended sediment concentration (mg/L) | milligramsPerLiter | ratio | real | blank cell | |||
| Flag_SS | data quality flag for SS | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| POC | particulate organic carbon conc. (umol/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_POC | data quality flag for POC | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| PON | particulate organic nitrogen conc. (umol/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_PON | data quality flag for PON | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| PO13C | delta 13C, isotope ratio 13C/12C of particulate organic carbon | partsPerThousand | ratio | real | blank cell | |||
| Flag_PO13C | data quality flag for PO13C | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| PO15N | delta 15N, isotope ratio 15N/14N of particulate organic nitrogen | partsPerThousand | ratio | real | blank cell | |||
| Flag_PO15N | data quality flag for PO15N | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DIC | dissolved inorganic carbon (umol C/L) | microMolesPerLiter | ratio | real | blank cell | |||
| Flag_DIC | data quality flag for DIC | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| DI13C | delta 13C, isotope ratio 13C/12C of dissolved inorganic carbon | partsPerThousand | ratio | real | blank cell | |||
| Flag_DI13C | data quality flag for DI13C | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| CHLA | chlorophyll a concentration (ug/L) | microgramsPerLiter | ratio | real | blank cell | |||
| Flag_CHLA | data quality flag for CHLA | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| PHAEO | phaeopigment concentration (ug/L) | microgramsPerLiter | ratio | real | blank cell | |||
| Flag_PHAEO | data quality flag for PHAEO | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| LTEXT | light extinction coefficient (m-1) | meter | ratio | real | blank cell | |||
| Flag_LTEXT | data quality flag for LTEXT | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| 15NH4 | delta 15N, isotope ratio 15N/14N of ammonium | partsPerThousand | ratio | real | blank cell | |||
| Flag_15NH4 | data quality flag for 15NH4 | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| 15NO3 | delta 15N, isotope ratio 15N/14N of nitrate | partsPerThousand | ratio | real | blank cell | |||
| Flag_15NO3 | data quality flag for 15NO3 | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| 15TDN | delta 15N, isotope ratio 15N/14N of total dissolved nitrogen | partsPerThousand | ratio | real | blank cell | |||
| Flag_15TDN | data quality flag for 15TDN | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| 15DON | delta 15N, isotope ratio 15N/14N of dissolved organic nitrogen | partsPerThousand | ratio | real | ||||
| Flag_15DON | data quality flag for 15DON | nominal | NA=not available | NS=not sampled | E=estimated | TBA=to be analysed | blank cell | ||||
| Comments | comments about data | nominal | blank cell |