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时间:2010-07-30 13:40来源:蓝天飞行翻译 作者:admin
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cloud, or the symbol XXX will indicate that the base is below FL185
eg, BKN AS or ISOL CB
350
300 XXX
400
Note 7. A similar convention is employed to indicate the
height indications of phenomena such as aircraft icing, turbulence
etc.
Note 8. When shown, centres of surface high or low pressure
are represented by H or L respectively, the position at the surface
of the point of highest or lowest pressure is indicated by a “+”
followed by the value of the MSL pressure in Hectopascals. When
used, an arrow indicates the expected speed of movement (in
knots). Movement of other significant features is shown in similar
fashion.
Note 9. Colours, if used, are to improve clarity of presentation
and have no other significance.
GEN TOC ENR TOC AD TOC Index
GEN (GENERAL) A/L 45 effective 24 NOV 05
24.2 Wind and Temperature Charts
24.2.1 Wind and temperature charts are provided for three specific
regions. The coverage of each chart falls within the following
areas:
a. Pacific Region – 50N to 50S between 170E and 130W.
b. Asian Region – 50N to 50S between 100E and 180W.
c. Indian Ocean Region –
50N to 50S between 30E and 110E.
GEN TOC ENR TOC AD TOC Index
GEN (GENERAL) A/L 45 effective 24 NOV 05
WIND AND TEMPERATURE CHART (EXAMPLE)
AWC
GEN TOC ENR TOC AD TOC Index
GEN (GENERAL) A/L 45 effective 24 NOV 05
(EXAMPLE)
VOLCANIC ASH ADVISORY
ISSUED: 20020520/1152Z
VAAC: DARWIN
VOLCANO: MANAM 0501–02=
LOCATION: S0406 E145037
AREA: Northeast Papua New Guinea
SUMMIT ELEVATION: 1807M = 5929FT
ADVISORY NUMBER: 4
INFORMATION SOURCE: Aircraft reports, Rabaul Volcano
Observatory [RVO], MS/NOAA Satellite Imagery
AVIATION COLOUR CODE: Nil ERUPTION DETAILS: QFA167
reported plume blw FL300 at 20/0530Z. RVO reports volcanic
activity will continue but with a slight decrease in intensity
OBS ASH DATE/TIME: 20/1145Z
OBS ASH CLOUD: Volcanic cloud observed by GMS/NOAA
extending southwest from Manam S0400 E14500 S0500 E14330
S0530 E14515 S0400 E14500
FCST ASH CLD +6 HR: 20/1800Z FL200/FL350 S0400 E14500
S0230 E14000 S0900 E14430 S0400 E14500
FCST ASH CLD +12 HR: 21/0000Z FL200/FL350 S0400 E14500
S0230 E13800 S1100 E14400 S0400 E14500
FCST ASH CLD +18 HR: 21/0600Z FL200/FL350 S0400 E14500
S0230 E13800 S1100 E14400 S0400 E14500
NEXT ADVISORY: No later than 20/1800Z
REMARKS: Ash appears to be dissipating within 120NM of
Manam
DARWIN VAAC
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GEN (GENERAL) A/L 45 effective 24 NOV 05
APPENDIX 1
SPECIAL AIR REPORT OF VOLCANIC ACTIVITY
1. Special Air Reports Containing Information on Volcanic
Activity (ICAO Model VAR).
1.1 Section 1 and such parts of Section 2 as are appropriate are
required from all aircraft as follows:
a. whenever pre-eruption volcanic activity or volcanic eruptions
are observed; and
b. whenever volcanic ash cloud is observed or encountered.
1.2 All elements of Section 1 and those elements of Section 2 which
are observed shall be recorded and indicated respectively in the
appropriate places on the form which is produced overleaf.
1.3 Information recorded for items 9 to 16 is not for transmission by
RTF, but, on arrival at an aerodrome, is to be delivered together
with the information recorded in Section 1 without delay by the
operator or a flight crew member to the aerodrome meteorological
office. If such an office is not easily accessible, the completed form
must be delivered in accordance with local arrangements made
between the Meteorological and ATS authorities and the operator.
GEN TOC ENR TOC AD TOC Index
GEN (GENERAL) A/L 45 effective 24 NOV 05
APPENDIX 1 – CONTINUED
Addressee
AIREP SPECIAL
2. Position
3. Time
4. Flight level
or altitude
5. VOLCANIC ACTIVITY
OBSERVED AT
6. Air Temperature
7. Spot Wind
8. Supplementary
Information
(Brief description of
activity including vertical
and lateral extent of ash
cloud, horizontal
movement, rate of growth,
etc. as available)
MODEL VAR
Aircraft Identification
(as per Item 1 of flight
Operator ......... plan ...........
Pilot – in –
Command
Arr at ......
Dep. from ......
...............
Date .......... Time.......... UTC
Date .......... Time.......... UTC
........
1. Aircraft
Identification
The following information is not for transmission by RTF
9. Density of ash cloud (a) wispy (b) moderate
dense
(c) very dense
 
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