2 December, 2002
Hello to all of you curious websurfers. This is Diane DiMassa, pinch hitting
for Andy. Andy is somewhat depressed today, no not because the Broncos lost,
but that certainly isn't helping. You see, the main field team was scheduled
to deploy to Beardmore Glacier today, but the weather has turned against us
for the first time this season. All flights in and out of McMurdo Station have
been grounded today. Up until now, the weather here has been quite pleasant -
cold, but actually pretty nice days considering what Antarctica can throw at
you. Over night and into this morning, a small storm has passed through and
the station went from nice weather, or Condition 3, to not so nice weather or
Condition 2. Below is a copy of the McMurdo Station Travel Policy. It explains
the weather condition categories; it's the visibility that is affecting us the
most.
***********************************
MCMURDO TRAVEL POLICY - SUMMER October - February
The intent of this policy is to provide guidelines for safe vehicle and foot
travel for all parcticipants related to the USAP. This policy is applicable for
the austral summer months, October-February. Severe weather conditions have
historically been instituted to define potential risk situations and allow the
establishment of standard procedures to minimize risk. The following defines
severe weather conditions and the safety and travel restrictions, which apply
to ALL personnel working in and around McMurdo Station.
CONDITION 3 is defined as having winds less that 48 knots, wind chills warmer
than -75F and visibility greater than 1/4 mile. This is considered the normal
weather condition in McMurdo.
CONDITION 2 is defined by one or more of the following conditions: winds
speeds 48- 55 knots, wind chills of -75 to -100 F, or visibility of less than
1/4 mile.
CONDITION 1 is defined by one or more of the following conditions: wind speeds
greater than 55 knots, wind chills colder than -100F, or visibility of less
than 100 feet.
****************************
Andy is depressed because the sea ice runway has been swapping back and forth
between Condition 2 and Condition 1 all day. Needless to say, not safe to be
flying about. I understand the feeling. I'm a veteran of the ANSMET program,
having been down here 4 years ago, along with John and Nancy. The weather then
was terrible for us. McMurdo weather was beautiful, but the weather at the
field site that year, Graves Nunataks, was so bad that we couldn't find a
weather window safe for landing an LC-130 there for over 2 weeks! As
fascinating as McMurdo Station is, we ran out of things to do here, especially
since all of our entertainment was packed and sitting out at the "airport"
ready to go. The anticipation was killing us that year!
I however have some mixed feelings about the delay. As much as I would like
the team to be able to get on with the meteorite hunting, I will be sad to see
them go. I am on the reconnaissance (or rekke) team. So when the main team
leaves for Beardmore Glacier, Dean, Cady, Carl, and I will be left behind for
a later deployment. Carl will catch up with the main team at Goodwin Nunataks,
but Dean, Cady and I will deploy to the LaPaz ice fields and then the Pecora
escarpment. It is likely that the main field party will be back in
Christchurch, New Zealand before the rekke team gets back to McMurdo, so I
won't be seeing those folks again until the Lunar and Planetary Science
Conference in March. We've all been getting along quite well, forming
friendships that will last a very long time, so I will be sad for them to
leave us, but happy that the field program will finally be getting under way.
Another reason that I have mixed emotions about the delay is that I am
secretly happy that the winds have picked up. (Don't tell Andy!!) You see, I'm
not a geologist like the rest of the crowd. I'm a Professor of Mechanical
Engineering at the University of Massachusetts Dartmouth. So, in addition to
my duties of being a wily veteran and helping things run smoothly, I have
brought down a set-up to get some data on wind energy. As the ANSMET team is a
deep field party, the team must be creative in its ways to supply enough power
for the needs of the team, for example powering Andy's computer so he can
continue to post to this website. I have a small system that my graduate
student Jake Piskura and I designed for the purpose of getting some data about
the potential for small wind turbines to provide power in the deep field of
Antarctica. My system is happily collecting data on the sea ice right now (I
hope), measuring the wind conditions and propensity for power generation.
Assuming things go well with this system test here in McMurdo, the main field
party will set it up at McAlpine Hills to get some data there. I am tempted to
run out onto the sea ice to check to see if everything is OK, but I really
don't have to. In the library at the Crary Lab is a small telescope. So, here
I stand looking through the telescope to see my set-up. Spin little wind
turbine! Spin!
Diane DiMassa
McMurdo Station
Here is a picture of the start of the McMurdo Turkey Trot. A footrace that goes through town and out onto the ice road to the sea ice runway. There is Scott Messenger in the front, the only ANSMET member crazy enough, er willing to parcticipate. Scott is wearing black pants and a black hat with a gray sweatshirt.
Well, OK so I gave in. Here I am walking out to the wind energy set-up to check it out in the not so great weather. (Photo Credit: Linda Welzenbach)
Here I am digging out the electronics bottle from the snow. Inside that piece of PVC pipe is my data logger and its batteries. I opened it up and swapped out the flashcard for a new one, closed it back up again to continue the experiment, and took the data back to the lab. (Photo Credit: Linda Welzenbach)
Hm, there I am laying on the snow next to the experiment. Have I collapsed out of euphoria that the system is working? Am I making a snow angel to guard the instruments? Maybe I just slipped on the ice.... (Photo Credit: the laughing Linda Welzenbach)
Here I am kneeling in front of my instruments with the way-cool flag that UMass Dartmouth made for me. (Photo Credit: the impressed Linda Welzenbach)
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