AIDJEX Bulletin #40 - Polar Science Center - University of Washington

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NOTE TO FRIENDS, AND BYSTANDERS . . . PARTICIPANTS, CONTRIBUTORS, COLLABORATORS, From the beginning of the project we felt that, in light of its high cost and risk of failure inherent to all enterprises involving sea ice camps, it was necessary to maintain an intense level of reporting. Since its first issue, published in 1970, the AIDJEX Bulletin has been a vehicle for communicating plans, events , data, analyses, and interpretations. It was used not only by the participants in the project, but in many instances also by researchers wishing to communicate their results rapidly and in a fashion that might benefit the progress of AIDJEX. We have ample correspondence from people saying they will miss the familiar, rough but vigorous document of work in progress, cheaply bound, with the scenic blue cover. But the project is done, according to plan, without accident; the data are banked, and whatever good ideas they proved or inspired will become part of the corporate memory of science. The work goes on and there has been no time for searching our minds for ways we could have done it better or for congratulating ourselves or, least of all, for waiting to be congratulated. An old adage of science goes: .If you have done some bad or meaningless research and nobody pays attention, praise your luck and proceed. .If you have done some flashy but dubious research, praise your fate, too. You will be talked about and after awhile people will only remember that you were talked about and forget that your work was dubious. .If you have done some sound and fundamental work, it will be so clear and self-evident in people's minds that, quite naturally, giving credit will become irrelevant. If you have that kind of luck, praise your fate, too, for that is the highest form of accomplishment. Such reflections aside, it is time to bring the AIDJEX Bulletin to an end. The only certain thing is that we owe gratitude to those who have contributed, and to its editor, Alma Johnson. Her dedication and skills, to a large degree, have made it the lively document to which we bid farewell with this final issue. Norbert Untersteiner
Dear Alan, Austin, Andy, AZexei, Ann, AZ, Ailsa, Bill, Bob, Beau, Ben, C Z ay ton, Clarence, Charlie, Co Zin, Dick, Dan, Drew, Dennis, Dean, Don, Dave, Erik, Ed, Eric, Frank, Fred, Gil lespie, Gary, George, Gunter, Gordon, Heinrich, Hilda, Hans, Igor, John, Jack, Jim, Judy, Joe, Jay, Ken, Konrad, Leo, Larry, Lon, Mark, Moira, Max, Miles, Mort, Mike, Norbert, Per, Price, Paul, Ron, Roger, Rich, Reid, Rene, Ruby, Sam, Steve, SeeZye, Ted, Tony, Willy, Warren, WaZZy, and Walt, to name but a few-- fiat can I say? The end? No more where this came from? Th-th-th-that 's all, folks? It's over? It is, you know. Putting out the Bulletin was more fun than anyone said it would be, and perhaps more fun than it should have been, but I'm glad we did it that way. Most of you I hadn't even met before AIDJEX began, and now so many of you are fr-knds. If this last BulZetin means the last assodation we have with each other, I shall be very sorry. I have enjoyed being your editor. Best regards I
Page 2 and 3: DATA BUOYS AIDJEX BULLETIN No. 40 J
Page 6 and 7: SUMMARY OF TECHNICAL DEVELOPMENTS I
Page 8 and 9: milestones, kept the vendor working
Page 10 and 11: The scene during deployment of HF-N
Page 12 and 13: The initial AIDJEX scientific plan
Page 14 and 15: poizr-orbiting satellite, which is
Page 16 and 17: t@ the spacecraft during each orbit
Page 18 and 19: BUOY NAHE COMMUN. COMMANDS FIXES TA
Page 20 and 21: L( 0 I 2 3 4 3 Radial error, kilome
Page 22 and 23: The buoy will be subjected to tempe
Page 24 and 25: nics occupy about 12 feet of the 17
Page 26 and 27: Ill -- - KEY AIUJEX WIN WW AEBa 0 4
Page 28 and 29: event that a melt pond should form
Page 30 and 31: chute supplied by Paranetics Inc. i
Page 32 and 33: 6'" IqORGANIC LITHIUM BP.TTEI?Y IMP
Page 34 and 35: OM (AD RAMS) UREMEN~ \ AIRDROP N m
Page 36 and 37: provides a grid from which geostrop
Page 38 and 39: words; a four-bit air temperature w
Page 40 and 41: PERFORMANCE OF MET/OCEAN BUOYS IN A
Page 42 and 43: Sensor samples were taken every thr
Page 44 and 45: strengths are known, were used with
Page 46 and 47: the ice (causing reduced shear). An
Page 48 and 49: (McPhee, Mangum, and Martin) , TABL
Page 50 and 51: 70°N 75'N n 3 P 17OOW (D Y 170°W
Page 52 and 53: 12OOW * U Station 25. Xeasurements
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(McPhee , Mangum, and Martin) 2701
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(McPhee, Mangum, and Martin) a 0 a
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"i BUOY 4 I 43 360- 309- 257 206 15
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a30gl 251 I 60 511 r 43 BUOY 4 I
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n 4, (McPhee, Mangum, and Martin) 8
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(McPhee, Mangum, and Martin) 33 W c
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. '-,..I.. . B A R R O W W I N D S
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:
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I 25 23 t h--:!li[ NCI PiHCEl4l 22
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.5 .4 .3 0 A R 2 R 0 W J - 0 B U -
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9 1.5 1.0 c 8 w .5 R 930 $ 565 1000
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Clock corrections were applied rout
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Q) u o z z i 4- 4- Z + + z f n 9 Ef
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TABLE 1 DIFFERENCES IN DAILY TEMPER
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Laboratory calibration of the ADRAM
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3.20- - 1 t W o? 2 3.051 ...:-.;..
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POSITION MEASUREMENTS OF AIDJEX MAN
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some redundancy. Four points were u
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75.5 75.: - E75.1 LLI % y75.c - 1 1
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The translocation principle removes
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POSITION ACCURACY To evaluate the q
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TABLE 1 STAND-ALONE ACCURACY 68th P
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Az i mu t h s When both receivers a
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DATA PROCESSING Following the field
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model ice motion in the statistical
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FREC 1 INCY / DOPPLER / FREQUENCY /
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35 30 25 v) > 0 2 20 LL 0 r= E m 15
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An example of a large-scale buoy ar
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observations are needed in remote a
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useful for determining how various
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as well as velocity fields, we must
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Since small changes in the yield su
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The transformation of the system of
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e able to judge how well such a mod
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then the flow rule becomes Q = +A -
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[-B' -F Finally, we eliminate Carte
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differential equation. 2. Discontin
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Substituting (36) and (37) into (34
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arbitrarily assign the values of 1
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The special case when advection can
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TABLE 1 STRETCHING, STRESS, ASP CHA
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ate of deformation, we have normali
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CHARACTERISTIC EQUATIONS The ordina
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One way to circumvent the problems
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The equations governing solutions a
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It is readily seen that when body f
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which may be substituted into equat
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a the stress derivative dCldS remai
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Although we have not studied in thi
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Courant, R., and D. Hilbert. 1962.
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A RESEARCH PLAN TO TEST THE AIDJEX
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the barges managed to reach their d
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APPROACH A baseline simulation 0-f
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SENSITIVITY OF ICE RESPONSE TO DIFF
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Since free drift of ice is computed
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and what is observed becomes less i
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stresses appear to be relatively un
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ehavior is directly related to accu
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TABLE 1 COMPARISON OF ESTIMATED ERR
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a) Base line b) 24-hour prediction
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\ / a) Base line b) 24- hour predi
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a) Base line b) 24- hour predi ct i
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\ / a) Base line b) 24-hour predict
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.. a) Base line b) 24- hour predict
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J2 a) Base line b) 24-hour predicti
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) 24-hour prediction c) 36-hour pre
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8 Figure 17. AIDJEX surface pressur
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APPENDIX 1 AIDJEX DATA FILES 1. Pos
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9A. Surface-1 eve1 ai r pressure (d
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19. Surface pressure (Val i dated)
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APPENDIX 2 AIDJEX DATA TRANSFERRED
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I -7-71327GEO A Cards (continued) 7
Page 202:
B Cards (continued) 201
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AIDJEX Bulletin #40 - Polar Science Center - University of Washington

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