WMO RTC-Turkey facilities, Alanya, Turkey Templates and Regulations
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Transcript of WMO RTC-Turkey facilities, Alanya, Turkey Templates and Regulations
WMO RTC-Turkey facilities, Alanya, Turkey Templates and
Regulations
TRAINING ON METEOROLOGICAL TELECOMMUNICATIONS WMO RTC-Turkey
facilities, Alanya, Turkey 22-30 September 2010 BUFR/CREX Templates
and Regulations Eva erven CZECHHYDROMETEOROLOGICALINSTITUTE
Traditional codes for which BUFR/CREX templates and regulations
have been developed:
SYNOP and SYNOP MOBIL Synoptic surface SHIP observations PILOT and
PILOT MOBIL PILOT SHIP Upper-air TEMP and TEMP MOBIL measurements
TEMP SHIP TEMP DROP CLIMAT and CLIMAT SHIP Monthly surface data
CLIMAT TEMP and CLIMAT TEMP SHIP Monthly upper-air data Time
identification in Section 1 and Section 4
BUFR Section 1 BUFR Section 4 Synoptic surface observations
Standard time : 00.00, 01.00, , 23.00 Time from group 9GGgg, if
included Upper-air measurements Standard time : 00.00, 06.00,
12.00, 18.00 Time of launch Monthly surface data Day=1, hour and
minute = of the month for which the data are reported BUFR
templates for surface observations
Templates TM , TM and TM for reporting SYNOP, SYNOP MOBIL and SHIP
data in TDCF are constructed in a similar way. They consists of 3
parts: Station, time and location identification Instantaneous data
Period data BUFR templates for surface observations
Instantaneous data Instantaneous parameter is a parameter that is
not coupled to a time period descriptor. Period data Period
parameter is a parameter that is preceded with a time period
descriptor, which allows more precise data description than in
traditional codes. However, once a period descriptor is introduced,
it applies to all following entries until it is redefined by
another period descriptor. BUFR template TM 307080 for SYNOP
Station, time and location identification Instantaneous data
Pressure data Basic synoptic instantaneous data Clouds with bases
below station level Direction of cloud drift Vertical significance
Direction and elevation of cloud State of ground, snow depth,
ground min. temperature Period data Basic synoptic period data
Evaporation data Replicate next descriptor 2 times Radiation data
Temperature change Height of sensor Measured values of some
elements are significantly influenced by the height of sensor.
Based on the requirements of OPAG IOS experts, descriptor (Height
of sensor above local ground or marine platform) has been
introduced to be reported for Temperature and humidity data
Visibility data Precipitation data Wind data In case of marine
data, also the height of sensor above water ( ) is required to be
reported for The heights of sensor 007032 and 007033 within the
templates for surface data
The entries within the instantaneous data as well as within the
period data are grouped according to the requirement for the
heights of sensor to be included or not. For example, within (Basic
synoptic period data), there is a block of entries: Precipitation
data, Extreme temperature data, Wind data, Height of sensor above
local ground (shall be set to missing to cancel the previous
value). The last entry was inserted because the height of sensor is
not required for the following data (Evaporation data, etc.).
Regional or national reporting practices
If regional or national reporting practices require inclusion of
additional period parameters, the common sequence descriptors , and
may be supplemented by relevant descriptors. If regional or
national reporting practices require inclusion of additional
instantaneous parameters, the common sequence descriptors , and
shall be supplemented by the required element descriptors being
preceded by a relevant time period descriptor set to zero, i.e =0
or =0. BUFR template TM 307086 forSYNOP data in compliance with
reporting practices in RA VI
Station, time and location identification Instantaneous data
Pressure data Basic synoptic instantaneous data Clouds with bases
below station level Vertical significance State of ground, snow
depth, ground min. temperature Dangerous weather phenomena (groups
9SPSPsPsP) Period data Basic synoptic period data Evaporation data
Replicate next descriptor 2 times Radiation data Temperature change
BUFR templates for upper-air measurements
Templates TM , TM for reporting PILOT, PILOT MOBIL and PILOT SHIP
data and TM for TEMP, TEMP MOBIL, TEMP SHIP and TM for TEMP DROP
data are constructed in a similar way: Station, time and location
identification Instrumentation Surface observations (only for TEMP,
TEMP MOBIL, TEMP SHIP) Level data (wind or P,T, U and wind) Wind
shear data Specific features of Regulations for reporting upper-air
data in TDCF
A message should be produced when level 100 hPa is reached. All
required data from the entire ascent shall reported in another
message, produced when the sounding is completed. Time and location
of radiosonde shall be included at each level. If high vertical
resolution data is required, data from additional levels may be
included, number of levels being limited by the message length
octets. The data should be included in descending order with
respect to pressure (in ascending order with respect to altitude).
Reporting of additional information
If regional reporting practices require inclusion of data at
additional levels, these levels shall be indicated by the bit No.
15 set to 1 in Extended sounding significance Other additional
levels shall be specified by all bits of set to 0. If additional
information on sounding instrumentation is required, the common
sequence descriptors may be supplemented by one or more parameters
to allow representation of such information or by a character data
field (using 2 05 Y). BUFR template for monthly surface data
Templates TM for CLIMAT data and TM for CLIMAT SHIP data are
constructed in a similar way: Station, time and location
identification Monthly data (with the exception of precipitation)
Monthly precipitation data Monthly normal values of elements (with
the exception of precipitation) Monthly normal values of
precipitation Period for monthly surface data
The time identification refers to the beginning of the one-month
period. Except for precipitation measurements, the one-month period
for monthly data is recommended to correspond to the local standard
time (LST) month. In case of monthly precipitation data, the
one-month period begins at 06 UTC on the first day of the month and
ends at 06 UTC on the first day of the following month. The same
applies for normal values (with the exception of precipitation) and
normal values of precipitation. Thank you for your attention !