Seasonal water table depth (WTD) measurements from a Mobile Instrumented System Platform (MISP) grid, Atqasuk, Alaska, 2017

Water table depth (WTD) measurements were taken along the Mobile Instrumented System Platform (MISP) grid in Atqasuk, Alaska during the summer of 2017. The MISP grid is situated about 50 meters to the south of the International Tundra Experiment (ITEX) dry site. If a uniform representation of the wa...

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Bibliographic Details
Main Author: Vargas, Sergio
Format: Dataset
Language:English
Published: Arctic Data Center 2019
Subjects:
EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT
TRANSECT
30 METERS TO 100 METERS
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
FIELD SURVEY
MONTHLY TO ANNUAL
environment
permafrost
Tundra
Alaska
Online Access:https://dx.doi.org/10.18739/a2bv79v8b
https://arcticdata.io/catalog/view/doi:10.18739/A2BV79V8B
Description
Summary:Water table depth (WTD) measurements were taken along the Mobile Instrumented System Platform (MISP) grid in Atqasuk, Alaska during the summer of 2017. The MISP grid is situated about 50 meters to the south of the International Tundra Experiment (ITEX) dry site. If a uniform representation of the water table within each plot was visible, then a WTD tube was placed there to measure the change in water table throughout the season. For instance if the plot was half saturated and half dry, then that plot was skipped and no tube was placed there. The exact location of WTD tubes are as follows: Between meters 0-1, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14, 15-16, 17-18, 19-20, 21-22, 23-24, 25-26, 32-33, 34-35, 36-37, 38-39, 40-41, 42-43, 44-45, 46-47 & 48-49. A total of 22 WTD tubes were installed into the MISP grid in Atqasuk. Measurements were made once a week during the summer snow free period between mid June and mid August. WTD was calculated as the difference between the depth (centimeter) of the water table above or below the measuring tube (- Values = water above tube, + Values= water level below the height of the tube) and the height of the top of the measuring tube above the ground level. Measurements were not made (NA in data sheet) if there was persistent snow cover, interference or disturbance from other experimental infrastructure, or if water table depth tubes were dry to the upper surface of the permafrost.

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