Aerial Dye "Bombing" a Berg in Davis Strait. A crewman, silhouetted in the rear cargo doorway of a U.S. Coast Guard HS-130-B Ice Patrol plane, drops a dye bomb on an iceberg in a field of ice in Davis Strait off Baffin Island for future identification and tracking. The bomb is a one-gallon glass jug containing a mixture of calcium chloride pellets and rhodamine "B" dye. The calcium chloride melts grooves in the berg allowing the rhodamine dye to penetrate the ice from one-half to one full inch deep, leaving an indelible bright vermillion stain that does not wash away with melting. A berg marke
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Contributor:
NB/USC / Alamy Stock PhotoImage ID:
2MEN2C7File size:
77.1 MB (1.8 MB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
5670 x 4753 px | 48 x 40.2 cm | 18.9 x 15.8 inches | 300dpiDate taken:
5 June 2017More information:
This image could have imperfections as it’s either historical or reportage.
Aerial Dye "Bombing" a Berg in Davis Strait. A crewman, silhouetted in the rear cargo doorway of a U.S. Coast Guard HS-130-B Ice Patrol plane, drops a dye bomb on an iceberg in a field of ice in Davis Strait off Baffin Island for future identification and tracking. The bomb is a one-gallon glass jug containing a mixture of calcium chloride pellets and rhodamine "B" dye. The calcium chloride melts grooves in the berg allowing the rhodamine dye to penetrate the ice from one-half to one full inch deep, leaving an indelible bright vermillion stain that does not wash away with melting. A berg marked by this method, used for the first time on the 1966 Ice Patrol, enabled Coast Guard observers to more accurately determine rate of drift and measure rates of ice deterioration over long periods. Calcium chloride-rhodamine "B" dye bombs on the 1966 Ice Patrol provided a more lasting effect on icebergs than the method initiated during 1965 Ice patrol of shooting arrows tipped with glass tubes of dye by an archer from the Coast guard oceanographic vessel Evergreen.