Weather at Toolik

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:	89mitlpc
Dataset Title:	Physics, chemistry, of Toolik lake in the summer of 1989 , Arctic LTER 1989.
Investigator 1:
First Name:	Michael
Last Name:	Miller
Address line 1:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Associate Investigators:	Rowe, William
Keywords:	alkalinity, conductivity, secchi, light penetration, pH
Abstract:	Physics, chemistry, of Toolik lake in the summer of 1989
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	89mitlpc
Beginning Date	5/1/1989
End Date	9/1/1989
Number of Data Records
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: For Archival Use: DATE RECEIVED: Feb90 DATA FILE ENTERED BY:Julie Pallant DATA FILE VALIDATION: NAME:Julie Pallant DATE:8Oct91



RESEARCH LOCATION:
Geographic Description	Toolik Lake
Location Bounding Box
West Bounding Coordinate
East Bounding Coordinate
North Bounding Coordinate
South Bounding Coordinate
OR if single point location
Latitude
Longitude



TAXONOMIC COVERAGE:
Organisms studied

Methods:	Water, physics and chemistry sampled weekly from central station the main station on Toolik Lake Temperature and conductivity were read by the YSI model 33, conductivity meter. Dissolved O2 and Temperature were read by YSI model 57 oxygen meter, air calibrated. Surface and underwater light transmission were read using LICOR digital light meter. Carbonate alkalinity was titrated against pH depending on expected alkalinity (see Wetzel and Likens 1979). pH was measured electrometrically with a Corning portable expanded standard pH buffer and corrected for temperature of sample. A measure of carbon-12 available for alkalinity from alkalinity form tables in Wetzel and Likens (1979). Color at 885 quantified with a Coleman single beam spectrophotometer (5cm light path), calibrated each run with external standard series to encompass the range of values anticipated (n=5 or 6 x duplicates/samples). Reference Citations: R.G. Wetzel & G.E. Likens. 1979. Limnological Methods. Saunders. Philadelphia. Sampling Description. None

Data Table

Variable    Variable descrip.            Precis./Units  Coded   Missing
(Y/N)    Values
SITE       N-2 fertilized and control                     y
YEAR       Year measurement taken                        n
DATE       Date                             DD-MMM-YY     n
D-D        Sample depth from surface         meters       n
Air=above surface
SECCHI     Secchi depth (22cm plate)         meters       n
COND.TEMP  TEMP. read by conductivity meter    C          n
COND.      Conductivity                     umhos/cm      n
DISS.O2    Dissolved Oxygen                  umhos/cm     n
DISS.O2 TEMP Diss oxygen temperature reading   C         n
LIGHT      Surface and underwater light transmission
uEinsteins/cm^2 n
pH 		  			             n
12C-AVAILABLE c-12 available for photosynthesis meq/l   n
AVAIL L-D PRODUCTION                 mg 12C assimilated/m^3-day n
PO4                SRP                        uM P/l     n
PO4-a      same as above                      ug P/l     n
NH4+        soluble ammonia                   uM NH4-N/l n
NH4+ -a       "                               ug NH4-N/l n
NO2+NO3     dissolved nitrate + nitrite       uM N/l    n
NO2+NO3           "                          ug NO3-N/l n
(12) CALCULATIONS
Variable        Formula
12C AVAILABLE-a mg C/liter = meq/l
PO4-a           ug P/l = uMP/l * 32ug/uM
NH4+ -a         ug NH4-N/l = uM NH$ * 14 = ug NH4-N/l
NO2+NO3 -a      ug NO#-N/liter = uM NO3-N * 8 * 14