Photo (left): Film crew with our scientists. Other snapshots from Mirai

Commentary:

Activities in the "small triangle" started at 09:00 LST (21:00 UTC). We had some "white-colored showers" night with no radar echo (for detail, see the report by Mike Reynolds in BNL section). The sea was sometimes rough with the black-finned wave. The film crew came in this morning and worked very hard.

Visual Observations:

Fine, with some precipitating low cumulus.

Instrument Status:

JAMSTEC

Most of the instruments are working well. Radar echoes were observed, but all of them were out of the Doppler-mode range.

RSMAS

Apart from a return of the noise problem for an hour or so this morning, all systems are operating well. The brain was taken out of the water while we moved to the "small triangle" position and has been back in and taking good data since 21:00 UTC.

KUMM/Okayama University

The weather was fine. The measuring systems worked well. The regular measurements (taken every three hours) of turbulent fluxes, and N2O gas density in the atmosphere and sea water were started in the "small triangle" at 09:00 LST. The measurement of CO2 gas density in sea water up to 1000m was made at noon. Solar and sky radiation, aerosols, and ocean color measurements were made occasionally under the clear sky.

NIES (National Institute for Environmental Studies) and TIT (Tohoku Institute of Technology)

The Lidar is operating well.

BNL

PRP: Operating well.
MET: Hardware working properly.
SST: Sea snake failed because of a fatigued tygon. We replaced sn#03 with #02.
MTOP:It was sunny today, allowing many good shots.
TSI: The Total Sky Imager is operating well. A frigate bird took a position on one of the ship antennas just upwind from the TSI. As a result, we found several permanent "clouds" on the dome this morning. How does one account for that? Later in the day, this bird was found perched on my T/RH aspirator (why me?). And, when shooed away from there, it flew right over to sit directly on the ship's pyranometer. Hand editing here we come!

NCAR

Profiler operated in mixed DBS and MAPR modes. Brief showers were observed with MAPR last night. Some data were missing in sismets surface met observations, they appear to be okay now.

Winds were predominantly light easterlies to 4 km, stronger aloft later in the afternoon.

S-Band Observations (Boundary Layer and Cloud echoes):
At 00:00 UT BL echoes to 0.9 km, variable clouds to 1.8, intermittent at 3.5 km, strong BL top At 05:00 UT BL echoes to 0.9 km, variable clouds to 2.2 km

Surface Met Observations:
At 00:00 UT SST 28.6C, air temp 28.1C, RH 74%
At 05:00 UT SST 28.8C, air temp 28.2C, RH 73%

Microwave Radiometer readings:
At 00:00 UT PWV 4.15cm, LWV .0mm
At 05:00 UT PWV 4.18cm, LWV .0mm

Previous Days' Updates:

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 13, 1999
June 12, 1999
June 11, 1999
June 10, 1999
June 9, 1999
June 8, 1999

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