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91dltuo
Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots, Arctic LTER 1991.
Gaius
Shaver
7 M B L St
Woods Hole
MA
02543
US
gshaver@mbl.edu
http://www.mbl.edu/ecosystems/staff/shaver/
https://orcid.org/0000-0002-6745-9989
Arctic
LTER MBL
7 M B L St.
Woods Hole
MA
02543
US
arc_im@mbl.edu
James
Laundre
Marine Biological Laboratory
7 MBL St, Marine Biological Laboratory,Ecosystems Center
Woods Hole
MA
02543
US
5082897476
jlaundre@mbl.edu
https://orcid.org/0000-0002-2061-8655
associated researcher
Julie
Pallant
US
associated researcher
1993
English
Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots. In 1990 a Campbell CR21x datalogger was installed in block 2 of the Toolik LTER experimental tussock plots. The plots are located on a hillside near Toolik Lake (68 38' N, 149 36'W). Sensors were placed in a control, fertilized, greenhouse, greenhouse fertilized, shadehouse and shadehouse fertilized sites.
wind
weather
temperature
relative humidity
radiation
LTER Controlled Vocabulary
greenhouses
shadehouses
Arctic LTER Vocabulary
Data Policies
This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.
Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set.
Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers.
For example: Data sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Award numbers #1637459,1026843, 9810222, 9211775, 8702328.
https://arc-lter.ecosystems.mbl.edu/91dltuo
LTER Moist Acidic Tussock Tundra: Arctic LTER Experimental Plots: Moist Acidic Tussock Tundra (MAT) Northeast corner block 1 near Toolik Field Station, North Slope, Alaska.
-149.610000610352
-149.610000610352
68.624397277832
68.624397277832
750
750
meter
1991-05-01
1991-09-01
Log of changes:
Combined the data for the year and output comma delimited data. 5 Mar98 JimL.
19Oct00 Added year and date as y2k; checked that midnight hour was not recorded as the next day. JimL
For Archival Use:
DATE RECEIVED: 14Nov91
DATA FILE ENTERED BY: Julie Pallant
DATA FILE VALIDATION:
NAME: Julie Pallant
DATE: 3Oct91
Version 3: Metadata updated to newer form (with sites sheet). Units updated to current standards. Discrepancy with variable names fixed. CH April 2013.
Version 4: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Arctic_LTER
Information Manager
Arctic Long Term Ecological Research
7 M B L St
Woods Hole
MA
02536
US
(508) 548-3705
arc_im@mbl.edu
Arctic
LTER MBL
7 M B L St.
Woods Hole
MA
02543
US
arc_im@mbl.edu
Arctic Long Term Ecological Research
Campbell CR21x datalogger is used to monitor weather and soil temperatures in the LTER experimental plots. Soil thermocouples were multiplexed with a Campbell AM416 multiplexer.
In the control plot sensors include: global solar radiation, photosynthetically active radiation, net radiation (Fritschen type), unfrozen precipitation and 3 meter air temperature, relative humidity, wind speed, and wind direction. In the greenhouses and shade houses plots, air temperature, relative humidity and photosynthetically active radiation were also measured during the growing season. These sensors were read every minute and averaged or totaled every hour.
In each plot two strings (one in a tussock and one in a moss-dominated area) of copper/constantin thermocouple wires (TC) were installed at depths of 10, 20, and 40 cm. The following label codes were used: CT=control, GH = greenhouses, SH = shadehouses, F=fertilized, GF= greenhouse fertilized, SF = Shadehouse fertilized, with a suffix of 1 for tussock or 2 for moss bed. All measurements are in degree Celsius. All soil sensors were read every 15 minutes and averaged every 3 hours. Hourly data are in the files yyDLTUH.DAT, the three hourly data are in yyDLTUO.DAT, and daily summaries are in yyDLTUD.DAT, where yy is the year in which the data are collected. The original data is in file yyDLTDAT.ZIP which is archived at The Marine Biological Lab, Woods Hole, MA.
Note: The cover on greenhouses and shadehouses are removed every fall and reinstalled every spring.
.
Notes: Missing days: Day 167 hour 1600 to day 172 hour 1400 (Bad connection); Day 228 hour 1100 to day 231 hour 1900; Day 313 hour 0500 to end of year (Battery volts dropped below 9.7). South and north in the variable titles refers to the north or south end placement of the green/shadehouse sensors.
Sampling Description.
DAYS: JULIAN + HOUR/2400
Control plot soil thermocouples CT1 are in a E.vag tussock a tindicated depth. CT2 are in a moss inter-tussock area at indicated depth Greenhouse soil thermocouples GH1 are in a E.vag tussock at indicated depth. GH2 are in a moss inter-tussock area at indicated depth Shadehouse soil thermocouples SH1 are in a E.vag tussock at indicated depth. SH2 are in a moss inter-tussock area at indicated depth Fertilized plot soil thermocouples F1 are in a E.vag tussock at indicated depth. F2 are in a moss inter-tussock area at indicated depth Greenhouse fertilized soil thermocouples Celsius GF1 are in a E.vag tussock at indicated depth. GF2 are in a moss inter-tussock area at indicated depth Shadehouse fertilized soil thermocouples Celsius SF1 are in a E.vag tussock at indicated depth. SF2 are in a moss inter-tussock area at indicated depth
91dltuo_csv
Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots, Arctic LTER 1991.
91dltuo.csv
136008
d2d48aa17f09893d790e9ed40b53ba05
34ecd1975f793f1a97d59534ec40ad2eb669d1b7
1
0
\r\n
column
,
"
https://arc-lter.ecosystems.mbl.edu/sites/default/files/data/weather/91dltuo.csv
Year
Year
Year
date
YYYY
Date
Date
date
date
dd-mmm-yyyy
Month
Month
Month of record
date
mm
DAYS
DAYS
Julian day + fraction of a day
number
real
ID
ID
Program step that output the data
number
real
JULIAN
JULIAN
Julian date
number
real
HOUR
HOUR
Time- Alaskan standard time
number
real
CT1 10CM
CT1 10CM
Set 1 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
CT1 20CM
CT1 20CM
Set 1 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
CT1 40CM
CT1 40CM
Set 1 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
CT2 10CM
CT2 10CM
Set 2 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
CT2 20CM
CT2 20CM
Set 2 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
CT2 40CM
CT2 40CM
Set 2 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
GH1 10CM
GH1 10CM
Set 1 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
GH1 20CM
GH1 20CM
Set 1 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
GH1 40CM
GH1 40CM
Set 1 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
GH2 10CM
GH2 10CM
Set 2 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
GH2 20CM
GH2 20CM
Set 2 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
GH2 40CM
GH2 40CM
Set 2 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
SH1 10CM
SH1 10CM
Set 1 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
SH1 20CM
SH1 20CM
Set 1 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
SH1 40CM
SH1 40CM
Set 1 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
SH2 10CM
SH2 10CM
Set 2 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
SH2 20CM
SH2 20CM
Set 2 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
SH2 40CM
SH2 40CM
Set 2 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
F1 10CM
F1 10CM
Set 1 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
F1 20CM
F1 20CM
Set 1 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
F1 40CM
F1 40CM
Set 1 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
F2 10CM
F2 10CM
Set 2 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
F2 20CM
F2 20CM
Set 2 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
F2 40CM
F2 40CM
Set 2 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
GF1 10CM
GF1 10CM
Set 1 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
GF1 20CM
GF1 20CM
Set 1 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
GF1 40CM
GF1 40CM
Set 1 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
GF2 20CM
GF2 20CM
Set 2 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
SF1 10CM
SF1 10CM
Set 1 daily average soil temperature at 10cm
celsius
real
#N/A
Missing or Not Measured
SF1 20CM
SF1 20CM
Set 1 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
SF1 40CM
SF1 40CM
Set 1 daily average soil temperature at 40cm
celsius
real
#N/A
Missing or Not Measured
SF2 20CM
SF2 20CM
Set 2 daily average soil temperature at 20cm
celsius
real
#N/A
Missing or Not Measured
COMMENTS
COMMENTS
Comments about individual datum points.
string
Comments about individual datum points.
764
91dltuo_excel
Excel file with metadata and data sheets. Soil temperature data from the Arctic LTER Toolik Tussock Experimental plots, Arctic LTER 1991.
91dltuo.xls
638976
7649497e97d409f396453d4fa6ff5440
9b81003f48982d114a9bad6dfc91fc029ba0a3e7
application/vnd.ms-excel
https://arc-lter.ecosystems.mbl.edu/sites/default/files/data/weather/91dltuo.xls
document