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Arctic LTER Database
Arctic LTER Database
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
Older Metadata: Attribute table not in XML (EML) file
| Dataset URLs: | METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data |
| Dataset ID: | 98e1nuts |
| Dataset Title: | Depth profiles of NO-3, NH-4 ,PO-4, TDN, TDP, PP, PN and PC for lake E1 in 1998, Arctic LTER 1998. |
| Investigator 1: | |
| First Name: | Anne | | Last Name: | Giblin | | Address line 1: | | | Address line 2: | | | Address line 3: | | | City: | | | State: | | | Zip Code: | | | Country: | | | Associate Investigators: | Neil Bettez, Jeff Berardinis, Amanda Wilson |
| Keywords: | phosphorus, ammonia, nitrite, nitrate, TDN, TDP, PP, PN, PC, nutrients. |
| Abstract: |
Depth profiles of NO-3, NH-4 ,PO-4, TDN, TDP, PP, PN
and PC for lake E1 in 1998. |
| 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: |
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| Data File Name |
98e1nuts |
| Beginning Date |
5/1/1998 |
| End Date |
9/1/1998 |
| Number of Data Records |
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| Other Files to Reference |
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| Availability Status |
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| Quality Control Information |
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| Maintenance Description |
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| Log of Changes: |
Log of changes:
For Archival Use:
DATE RECEIVED: Aug, 1998
DATA FILE ENTERED BY: Neil Bettez
DATA FILE VALIDATION: Neil Bettez
NAME: Neil Bettez
DATE: Aug 1998 |
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| RESEARCH LOCATION: |
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| Geographic Description |
Lake E1. |
| Location Bounding Box |
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| West Bounding Coordinate |
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| East Bounding Coordinate |
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| North Bounding Coordinate |
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| South Bounding Coordinate |
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| OR if single point location |
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| Latitude |
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| Longitude |
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| TAXONOMIC COVERAGE: |
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| Organisms studied |
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| Methods: |
Water samples were collected at depth with a Van Dorn. Inorganic nutrient samples were filtered
in the field using 25 mm .2um Nalgene syringe filters.
Phosphorus, and ammonia samples were kept at 4 C in amber HDPE bottles until
being run according to standard methods (Strickland and Parsons, 1972).
Nitrate samples were frozen and shipped to MBL. Nitrate/nitrite was determined on an alp chem
autoanalyzer using an OTCR with method (AlpKem RFA method A303-S171).
Total dissolved Nitrogen samples were fixed with 100 ul/ 60ml 6N Ultrex HCL, shipped to MBL,
and stored at -20 C. Samples were was digested with potassium persulfate and nitrate + nitrite and nitrite
determined on an alp chem. autoanalyzer using a open tubular cadmium reactor (OTCR)
method (PN 000623 #8-92 rev B).
Total dissolved phosphorus samples were fixed with 100 ul / 60 ml using 6N Ultrex HCL, shipped
to MBL, and stored at 4 C.
Particulate Phosphorus, nitrogen and carbon samples were collected on pre-combusted 25 mm
GF/F filters. Filters were dried overnight at 55 C prior to shipment. 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: AlpKem Rapid flow analysis method A303-S171 for Nitrate
AlpKem Rapid flow analysis method PN 000623 #8-92 rev B for TDN
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.
Strickland, J. D. & Parsons, T. R., (Eds.) 1972. A practical handbook of seawater analysis. second edition.
Fisheries Research Board of Canada, Ottawa.
Sampling Description.
None |
Data Table
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 ammonium uM n
PO4 SRP uM n
NO3 nitrate uM n
TDN Total dissolved N uM n y
TDP Total dissolved P uM n y
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
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