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Report from the Ron Brown: July 3, 1999

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Photo (left):When seas are moderate to rough and the Ron Brown is underway, we often encounter bow spray. It often blows backwards and wets instruments and people alike, sometimes reaching the bridge.

Other snapshots from the Ron Brown

Daily Weather Forecast Mirai Updates! Nauru Updates!

Commentary:

At 0930 local time,the Ron Brown (RHB) left its Nauru station and steamed to Mirai for intercomparisons, reaching it at about 1145. We positioned ourselves about 0.9 km away and turned off our 915 MHz wind profiler, then exchanged visitors until 1700. On RHB, the science party selected its visiting contingent by lottery. Mirai is a beautiful and capable ship, and its highly professional crew and science staff were extremely good hosts. The two ships exchanged data and images from internal web pages. RHB left Mirai at 1730, bound for our former location 12 nm from Nauru. Tomorrow we will steam to within 500 meters of the island coast, adjacent to ARCS2.

Date: July 3, 1999
Local Time: 1515 Local, 0315 Z
GPS Ship Position:

Lat. 0 Deg. 12.1 min. S

Long. 166 Deg. 52.6 min. E

Heading: 133 deg
Surface Wind: 6.1 m/s @ 109 deg. (14 m height)
Temperature: 28.1C (13 m height)
Sea Surface Temperature: 28.7C (5 m depth)
Relative Humidity: 72.6 % (13 m height)
Precipitation last 24 hr: 0.0 [mm]
Column Water Vapor: 3.3 cm (MWR)
Cloud Layer Heights:

Ceilometer: 0.7, 5.2 km bases at various times

Radar: nothing at time of report - see below

Lidar: 0.7, 1.0, 1.7, 4.5, 5.8 km bases at various times

Radiosonde Inversion Height: 0.6 km @ 2330 Z (Day 183)

Visual Observations:

Yet another fair-weather day, moderate breezes, no storms.

Instrument Status:

The cloud radar often does not report clouds when other instruments do only because its archived readout is not immediately available to the individual who gathers data for the daily report. If clouds are not apparent on the instantaneous cloud radar screen, n/a is entered for the cloud radar input to the daily report.

Previous Days' Updates:

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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