6.  Asgard Station

ID#: 
	8909
Date: 	
	9 December 1980.  Julian day 344.
Time: 	
	Departed McMurdo 0700 Z.  Arrived site 0800 Z.
	Departed site 0900 Z.  Arrived McMurdo 1000 Z.

Background:  
	This AWS unit was originally loctaed in Beacon Valley to the South.  It was reloctaed to its current position during the 1979-80 season.  Dr. Friedmann has a biological experiment at this site and the AWS data is used by his group.  For this reason the unit has a humidity sensor in addition to the regular sensors.

Equipment:  
	See section VI for 3-man visit to already established station.

Weather:  
	On arrival, scattered clouds with about 2 inches of fresh powder snow on the ground.  During our stay at the station clouds moved in from the northwest until sky was low overcast with light snow showers and abundant ice crystals.

Trip:  
	Smith, Evans, and Savage departed in helo piloted by Ferrell.  Beautiful trip up Taylor Valley.  Found site without difficulty, landed, and shut down helo.  Evans conducted radiation survey.  Replaced aerovane and verified correct match to boom.  Verified transmitter output.

Observations:	
	Calibrated -30 to +50 C mercury-in-glass thermometer used.  Altitude (1,750 meters) too to use microbarometer.

	time		temperature		relative humidity
	0819 Z		-10.2 C			
	0833 Z		-11.8 C
	0848 Z		-10.5 C			100%

	estimated wind speed:  calm
	estomated wind direction:  (direction which aerovane was pointing):  Northwest

AWS Output:  
	time		temperature	pressure	wind
	0830 Z		-7.2 C		800.3 mb	008 deg at 0.0 kt
	0820 Z		-8.8 C		800.3 mb	
	0810 Z		-8.4 C		800.2 mb
	0800 Z		-8.0 C		800.2 mb
	0750 Z 		-9.4 C		800.2 mb

	mean wind speed:  0.0 knots
	mean wind direction:  315 degrees true
	signal strength:  -115 dbm
	humidity sensor voltage:  4.6 volts

Notes:
	1.  AWS output temperature 4 to 5 degrees warmer than observed temperature.

How to Find:
	Station is located adjacent to identifiable landmarks and can easily be found using topographic maps.