on 400 miles of transect in which the navigation was good the records correspond very 

 closely Over the survey area, the average difference between microsurface and bucket 

 closely, uver me ^ y 9 n° tn + 7°C throughout the year, with the microsurface on 

 T'^ZTo 5»rcoLT The dUrer nces-a* r>l.en.tic with season, so that to sonae 

 frnme'Lferencetetween microsurface and buCet-depth temperatures can he predicted 

 from empirical data collected over a year's time. 



In discussion it was pointed out that if microsurface/bucket-depth temperature re- 



TakasMJchiie_and^^ 

 Infrared Thermometer 



The Lament Geological Observatory has been using the '"'--f/^"™"™';";!. 



• *v, fr.^ =tv„r.t,irP of surface water temperature concurrently with tieid experi 

 determine the fne ^^^^^^^"^^^ °^J'^'j4,, were made to determine whether the instrument 

 ments of dye diffusion. A ''''J^''^i;!l2'msmrno^ The results of these tests indicated 

 T. ttif r :^Z:st.:^^^^ .- precaution must be taken in 

 that theie are many ^i^nle calibration was made by mounting the sensor at 



:$tet'°mee": trffLttomt^tL surface of a basin 4 feet in diameter and 10 inches 

 : h witht'suTl-ert'eplng water temperature nearly >'0-3--wa'te Js'^rt c?^ Co"! 

 ihown to be intluenced by air temperature ''^'»'=«" *'=4<'"=°; ""^ **,o7'" '" e.^alr 



^ent wfthmTTrunted onL tower at Panama City (at 100 feet fro.n the sea surface) the 

 instrument was able to detect tide lines, ship wakes, and dye patches. 



jamesJ^^Sauire^.: ObservMiorLoLPhls^^ 

 Airborne Radiometer 



temperr=:=^c=::~?H5iSE^ 

 or sea surface temperature to ^'^^'™-;;;td ^C^^ n 3 "^^^^^^^^^^ operation. 



factors for the lUT readings. Field tests were made comparmg IRT observation 



-14- 



