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Report from the Ron Brown: July 11, 1999

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Photo (left):View of the southeast Nauru coast at low tide from the Menen Hotel, where many Nauru99 workers and visitors reside. Swimming and snorkeling generally is not safe because of riptides and jagged coral spires.

Other snapshots from the Ron Brown

Daily Weather Forecast Mirai Updates! Nauru Updates!

Commentary:

We completed 11 circumnavigations of the island in 23.8 hours at 8:30 this morning; all circuits, except one (3 km distant), were at 1 km from the coast. Chlorophyll samples taken en route indicate increased chlorophyll productivity in the water below the cloud of phosphate from dockside loading operations. Chuck Pavloski and ship's engineers Mike Gowan and Pat McManus visited the Atmosphere Radiation and Cloud Station (ARCS) site to fix sun photometers and air conditioners; both efforts were successful. The ship will hold position 2 km offshore on the windward side of the island until tomorrow morning; then we plan to move to characterize the gradient of the island's aerosol plume downwind from Nauru, provided phosphate loading has ceased.

Mystery of the day: Will Jeff Otten's luggage appear at midnight? (The reverse Cinderella effect.)

Date: July 11, 1999
Local Time: 1445 Local, 0245 Z
GPS Ship Position:

Lat. 0 deg. 31.9 min. S

Long. 166 deg. 58.4 min. E

Heading: 133 deg
Surface Wind: 5.0 m/s @ 116 deg. (14 m height)
Temperature: 28.1C (13 m height)
Sea Surface Temperature: 28.9C (5 m depth)
Relative Humidity: 74.8 % (13 m height)
Precipitation last 24 hr: 10.6 mm
Column Water Vapor: 4.7 cm (MWR)
Cloud Layer Heights:

Ceilometer: 0.6, 2.4, 7.0 km bases

Radar: 0.6, 0.8 km bases, 12 - 14 km

Lidar: 0.9, 1.2, 3.0, km bases, 12 - 16 km

Radiosonde Inversion Height: 0.6 km @ 1128 Z (Day 191)

Visual Observations:

Diffuse sunlight all day today because of cirrus, plus scattered lower clouds. Wind is moderate. No whitecaps.

Instrument Status:

No change. All is well.

Previous Days' Updates:

July 10, 1999
July 9, 1999
July 8, 1999
July 7, 1999
July 6, 1999
July 5, 1999
July 3, 1999
July 2, 1999
July 1, 1999
June 30, 1999
June 29, 1999
June 28, 1999
June 27, 1999
June 26, 1999
June 25, 1999
June 24, 1999
June 23, 1999
June 22, 1999
June 21, 1999
June 20, 1999
June 19, 1999
June 18, 1999
June 17, 1999
June 16, 1999
June 15, 1999
June 14, 1999
June 10, 1999

 

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