RH

Monthly averaged measurements from Friis Hills Meteorological Station (FRSM) in Taylor Valley, Antarctica from 1993 to present

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 averaged measurements derived from 15-minute data generated by the Friis Hills Meteorological Station (FRSM), located in Taylor Valley (Latitude: -77.7474, Longitude: 161.5162, Elevation: 1,591 meters above sea level).

Dataset ID: 

7217

Associated Personnel: 

875
876
443
445
444
446

Short name: 

FRSM_MONTHLY

Data sources: 

FRSM_AIRT_MONTHLY
FRSM_RADN_MONTHLY
FRSM_RH_MONTHLY
FRSM_PRESSTA_MONTHLY
FRSM_WSPD_MONTHLY

Methods: 

The Friis Hills meteorological station was added to the McMurdo Dry Valley network in the 2010-2011 field season. 
       
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 15 minutes. This has resulted in approximately 20 values being recorded for final storage in every output interval.

Maintenance: 

On Season 2010/11, by Thomas Nylen
 
1. Converted station to LTER format
 
2. CR10X time was set to UTC, but changed to local daylight saving time. CR10X 55 secs behind. Changed at 12/23/2010 0930. Changed output results to local time (UTC + 13hrs)
 
3. Wind Pointing north, declination at site is 152 degrees
 
4. GPS location: 77.74738, 161.51634
 
5. Sensor Heights: Temp/RH = 2.5m, Wind = 3.6m and NetRad = 2.05m
 
6. Loaded new program Friis1011v1 on 12/23/2010 1007.
 
7. Processed data back to 2005. Duplicated line of data on 1/18/2008 10:55 (local time). Deleted second extra line.
 
8. Replaced HMP45C RH sensor on Dec 16, 2008 @ 1304 (local). Wind direction alignment checked and is pointing north.
 
9. Pressure added by Wisconsin AWS group on 02/04/2008 11:00

Additional information: 

Meteorological data is collected year-round at each of the stations in the McMurdo Dry Valleys of Antarctica. After retrieving this data (usually every January), the parameters that are recorded are processed from level 0 (raw) to level 1 (processed, provided on the web). The raw data file descriptions and task lists summarize what was done to get from level 0 to level 1 for all station found at the following address:

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