 |
Photo (left):Tom Gillman, on board the Ron Brown under The
National Ocean and Atmospheric Administration's (NOAA's) Teacher
at Sea Program, re-enacting his dreams on the bridge of the ship.
Tom, a former NOAA Corps officer, has organized the ship's Nauru99
internal web page and collects data for the daily reports.
Other
snapshots from the Ron Brown
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Commentary:
Today at 9:00 a.m. we began repetitive circumnavigations of the island
1 km from the coast. A phosphate ship was being loaded, with a large cloud
of phosphate dust trailing leeward. Lidars are taking data continuously
to better characterize the effect of the island on the atmosphere. Chuck
Long and Meegan from the Atmosphere Radiation and Cloud Station (ARCS)
site boarded the Ron Brown at 11:30, Chuck to confer on the next days'
operations, Meegan to help Jen and Tepora with chlorophyll samples. We
are running the SeaBeam ocean floor contouring sounder and getting nice
three-dimensional images of the sloping shelf beneath the ship.
| Date: |
July 10, 1999 |
| Local Time: |
1510 Local, 0310 Z |
| GPS Ship Position: |
Lat. 0 deg. 29.6 min. S
Long. 166 deg. 56.8 min. E
|
| Heading: |
094 deg |
| Surface Wind: |
5.9 m/s @ 103 deg. (14 m height) |
| Temperature: |
26.6C (13 m height) |
| Sea Surface Temperature: |
28.8C (5 m depth) |
| Relative Humidity: |
86.8 % (13 m height) |
| Precipitation last 24 hr: |
10.6 mm |
| Column Water Vapor: |
6.5 cm (MWR) |
| Cloud Layer Heights: |
Ceilometer: 0.6, 2.0 km bases
Radar: 0.8 - 2.0, 5.5 - 6.5 km
Lidar: 0.6, 1.1, 14.0 km bases
|
| Radiosonde Inversion Height: |
0.6 km @ 0529 Z (Day 190) |
Visual Observations:
Fair weather day until mid-afternoon, when column water vapor rose markedly
and moderately small storms began propagating across the Nauru region
east to west.
Instrument Status:
All is well. It appears, after comparing four island and ship sondes
launched from opposite sites, that island sondes are biased dry.
Previous Days' Updates:
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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