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: | 95s2nuts |
| Dataset Title: | Depth profiles of NO-3, NH-4 ,PO-4, TDN, PP, PN and PC for Lake S2 in 1995, Arctic LTER 1995. |
| Investigator 1: | |
| First Name: | Mike |
| Last Name: | Miller |
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| Associate Investigators: | Neil Bettez, Gretchen Gettel, Mark Dornblaser, tech Smith |
| Keywords: | phosphorus, ammonia, nitrite, nitrate, TDN, PP, PN, PC, nutrients. |
| Abstract: | Depth profiles of NO-3, NH-4 ,PO-4, TDN, PP, PN and PC for Lake S2 in 1995. |
| Contact: | Arctic LTER Information Manager The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole, MA 02543 Phone (508) 289 7496 Email: arc_im@mbl.edu Online URL: http://ecosystems.mbl.edu/ARC/ |
| DATA FILE INFORMATION: | |
| Data File Name | 95s2nuts |
| Beginning Date | 5/1/1995 |
| End Date | 9/1/1995 |
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| Log of Changes: | Log of changes: For Archival Use: DATE RECEIVED: September, 1995 DATA FILE ENTERED BY: Neil Bettez DATA FILE VALIDATION: NAME: Neil Bettez DATE: September, 1995 |
| RESEARCH LOCATION: | |
| Geographic Description | Lake S2 |
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| Methods: | Water samples were collected at depths 0,1,3,5,8,12,16 meters with a Van Dorn. Water was filtered in the field using 47mm .045 um millipore HAE filters. Phosphorus, ammonia and nitrate/nitrite samples were kept at 4 C in amber HDPE bottles until being run on an ALP chem auto analyzer . TDN samples were fixed with 1 ul/ml 6N HCL and shipped to MBL. Total dissolved organic N was digested with potassium persulfate and determined on an alp chem autoanalyzer using a packed cadmium column and RFA method number AS303-S171-09 . TDP samples were fixed with 1 ul/ml 6N HCL and shipped to MBL. Total dissolved organic P was digested with potassium persulfate and determined on an alp chem autoanalyzer using RFA methods Particulate Phosphorus, nitrogen and carbon samples were collected on precombusted 25 mm GF/F filters. Fiters were dried overnight at 55 C prior to shipment and stored in ziplock freezer bags. Particulate phosphorus was determined using methods of Stainton et al., (1974). Particulate Nitrogen and carbon were run on a Perkin elmer CHN analyzer. Reference Citations: R.G. Wetzel & G.E. Likens. 1979. Limnological Methods. Saunders. Philadelphia. A quantification of low-level ammonia in freshwaters. Standard Methods 1985, p 382. Stainton, M.P. M.J. Capel, F.A.J.1974. Armstrong The chemical Analysis of fresh water. Fish Res. Board Can. Misc.Spec. Pub. 25: 67. 1974. Sampling Description. None |
Variable Variable descrip. Precis./Units Coded Missing (Y/N) Values SITE site of measurement site code y Lake Lake sampled n Depth depth sampled meters n DATE Date DD-MMM-YY n NH4 ammonia uM n y PO4 SRP uM n NO3 nitrate uM n TDN total dissolved N uM n TDP total dissolved P uM n PP Particulate phosphorus u moles/L n y PN Particulate Nitrogen ug/l n y PC Particulate Carbon ug/l n y (12) CALCULATIONS Variable Formula |