PAR

Monthly measurement summaries from Lake Hoare Meteorological Station (HOEM), McMurdo Dry Valleys, Antarctica (1987-2021, ongoing)

Abstract: 

As part of the McMurdo Dry Valleys Long Term Ecological Research program, meteorological data are collected from various locations throughout the McMurdo Dry Valleys of Antarctica. This data package contains monthly measurement summaries derived from 15-minute data generated by the Lake Hoare Meteorological Station (HOEM), located in Taylor Valley.

LTER Core Areas: 

Dataset ID: 

7211

Associated Personnel: 

898
899
900
901
902
903

Short name: 

HOEM_MONTHLY

Data sources: 

HOEM_AIRT_MONTHLY
HOEM_PPT_MONTHLY
HOEM_PRESSTA_MONTHLY
HOEM_RADN_MONTHLY
HOEM_RH_MONTHLY
HOEM_SOILT_MONTHLY
HOEM_UV_MONTHLY
HOEM_WSPD_MONTHLY

Methods: 

The Lake Hoare meteorology station was one of two meteorological stations operating on the floor of Taylor Valley at the start of the first McMurdo LTER field season (1993-1994). The McMurdo LTER team took control of this station during this season, and replaced it with a new station, located a few meters above the old site to avoid rising lake levels.
 
The station was set up to sample sensors every 30 seconds and send summary statistics (for example, averages and maximums) to solid-state storage modules every 10 minutes between December 18, 1993 and January 16, 1994, every three hours between January 16, 1994 and November 18, 1994, every 20 minutes between November 18, 1994 and November 28, 1995, and every 15 minutes thereafter.  This has resulted in approximately 20 values being recorded for final storage in every output interval.  Primary measurements made on Lake Hoare meteorology station, instrumentation used, and time of initiation are shown in the following table.
 
On Jan 26, 2002 a second datalogger and the TE525MM Tipping bucket rain gage was installed.  The tipping bucket records the number of tips every 15 minutes. Three soil probes, 0, 5 and 10 cm below the surface were added to the datalogger on Dec 29, 2002.

Maintenance: 


 

Additional information: 

Meteorological data are collected year-round at each of MCM LTER stations. Data are manually downloaded from the meteorological stations during the austral summer. Raw 15 minute data (Level 0) is processed and provided as Level 1 data on the MCM LTER website. Field notes, sensor information, processing procedures, QA/QC, and metadata is provided in the Meteorological Post Processing Documentation and Task Lists for each field season at the following address: https://mcm.lternet.edu/meteorological-task-lists

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