Radionsonde Profiles
Synoptic Time | Launch Time UTC | Launch Time LT | Plot | Plot |
00Z | 2245 | 745 | T-RH | Winds |
03Z | 0145 | 1045 | T-RH | Winds |
06Z | 0445 | 1345 | T-RH | Winds |
09Z | 0745 | 1645 | T-RH | Winds |
12Z | 1045 | 1945 | T-RH | Winds |
Afternoon AVHRR
Nighttime AVHRR (from the night before 097)
noaa-16 at 1645 (0145 LT)
noaa-16 at 1826 (0326 LT)
noaa 12 at 2029 (0529
LT)
From the OPS Center
GENERAL OVERVIEW
The weather depiction for 0000 UTC, Sunday, April 8 is
shown here . It is
anticipated that there will be scattered to broken clouds in
the Yellow Sea, especially north of 34 N during the day on Sunday.
Near Cheju
and the ship's location the winds will be from the ESE
and SE, respectively. There will be a surface ridge line (area of high
pressure)
near 40 N east of Korea. Chemical transport model
results indicate that significant aerosol plumes will be found in the
area.
Satellite images show dust being transported in the area north of
37 N, east of 120 E. A flight track for the C-130 is being planned
near 133 E to
intercept these plumes. A flight plan for the Twin Otter
to sample near the ship's location has been filed. SE of Japan there
will be
multilayer clouds, thunderstorms and showers of rain.
The situation at 0000 UTC on Monday, April 9 is
shown here. There will be
increased clouds and precipitation, at least intermittently, in
the area north of 30 N both west and east of Cheju. Clouds and showers
are also
likely west of Korea, especially west of 125 E. There
will be scattered and broken clouds in the area north of 35 N, east
of 130 E.
The southeasterly flow will bring material from Japan into
the Japan Sea during this time.
DISCUSSION
The frontal system shown on the depictions discussed above will move
slowly to
the east over the next 4-5 days. Disturbances
propagating along this front, crossing the Chinesse coast around 30
N, could
grow into weak weather systems which could influence the
cloud and transport distributions. Model results suggest that this
will happen
repeatedly during this period.
SUMMARY
Conditions are generally favorable for the planned flights of the Twin
Otter and
the C-130 for Sunday, April 8. There are uncertainties
about the transport and meteorological conditions with respect to possible
aircraft flights on Monday, April 9.
MISSION PLANS:
PRIMARY MISSION:
Twin Otter will conduct an aerosol characterization flight with
intercomparisons with the Ron Brown in the vicinity of 38N, 134E
C-130 will conduct an aerosol characterization flight over the Sea of
Japan
with the possibility of sampling a dust event.
SECONDARY MISSION:
N/A
TAKE OFF / LANDING TIMES:
Plane Take-off
Times(UTC) Landing Times(UTC)
NCAR C-130 0315 UTC,
1215 JLT
CIRPAS Twin Otter 0315 UTC, 1215 JLT
Pre-flight briefing times(UTC): 0100 UTC, 1000 JLT
Update times(UTC): 2230 UTC (4/7), 0730 JLT
AIRBORNE MISSION SCIENTIST NAMES:
NCAR C-130 : P RUSSELL
CIRPAS Twin Otter : JONSSON
ARA King Air :
SHIP OPERATIONS:
After 0400 UTC, Ron Brown will steam from current position to vicinity
38N,
134E for intercomparison measurements with the Twin Otter and possibly
with the
C-130.