Transcript Abteilung Messnetze und Daten Building and Operating a Station Network for Climatology and Hydrology K.

Abteilung Messnetze und Daten
Building and Operating a Station Network
for Climatology and Hydrology
K. Klapheck, S. Alsen, R. Bauer, A. Bungenstock
Deutscher Wetterdienst Hamburg
E-mail: [email protected]
Sö[email protected]
[email protected]
[email protected]
Adress: Jenfelder Allee 70a
D-22043 Hamburg
TECO-2006, 4 dec 2006, Geneva
Abteilung Messnetze und Daten
- Introduction
- Progress in building up the network
- Station description
- Facilities of the network
- Maintenance of software and hardware
- Final remarks
TECO-2006, 4 dec 2006, Geneva
Abteilung Messnetze und Daten
Need for modernizing the ‚voluntary Observer network‘ for climatology/hydrology :
by
using new measurement- and information-technology and
redesigning the net (locations, numbers, equipment of stations):
achieve
- automizing the readings of instruments
- prompting eye observations into electronic data processing
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Abteilung Messnetze und Daten
Other objectives of the new network
-
Improve data quality: same level as data from synoptical stations
- fast availability of data
- central archiving of data
- remote monitoring and remote configuring of stations
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Abteilung Messnetze und Daten
Building the network: working routines
Activities at the site:
-
searching for station locations
granting contract with site owner
pre-installation of the measurem. area
provision of ISDN connection
installation of the measurement system
starting up and instruction
Providing hardware & software
for station & network
-
fixing user requirements
writing specifications
procurement procedures
acceptance tests of prototypes
tests of series production
- system modifications
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Abteilung Messnetze und Daten
Station types and numbers
in operation
(Oct 2006)
planned
AMDA III / S (Standard station, with observer)
245
301
AMDA III / N (Precipitation station, with observer)
405
500
subtotal
650
801
11
99
666
900
Type
AMDA III / W (Wind station, no observer)
total
AMDA = Automatical Meteorological Data-Acquisition system
(AMDA I / II : system for the synoptical network with / without full-time observer, see
Klapheck et al., TECO2005)
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Abteilung Messnetze und Daten
Monitor
program
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Abteilung Messnetze und Daten
Station scheme
Beobac hter - T erminal
Lufttemperatur-,
Luftfeuchtesensoren
W indmessanlage
S Station
+ 200 cm
S onnenscheinsensor
Niederschlagssensor
ISDN
AK - E
AK -L /F
AK - S
AK - N
AK - W
NTBA
Lufttemperatursensor
+ 5 cm
E rdbodentemperatursensoren
- 5 cm
- 10 cm
- 20 cm
- 50 cm
- 100 cm
Service
Programm
PSTN
Datenkommunikations
und
Mess netzmanagement
MN2000
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Abteilung Messnetze und Daten
Station area
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Abteilung Messnetze und Daten
List of sensors
Measured variable
Accuracy
Air temperature, 2m
0,2 K
Relative humidity, 2m
3%
Sensor type
Intersection
Sampling
Pt100
analogue
1/s
analogue
1/s
analogue
1/s
Air temperature, 5cm
0,2 K
Capacitive sensor HMP 45A
louvred shield with fan, Pt100
and HMP 45A by twos
Pt100
Soil temp., 5cm
0,2 K
Pt100
analogue
1/s
Soil temp., 10cm
0,2 K
Pt100
analogue
Soil temp., 20cm
0,2 K
Pt100
analogue
Soil temp., 50cm
0,2 K
Pt100
analogue
Soil temp., 100cm
0,2 K
Pt100
analogue
1/
1/
1/
1/
Precipitation
Temp. at precip. Sensor
Sunshine duration
Wind speed
Wind direction
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0,04 mm
analogue
s
s
s
s
1 / min
Precip. Weighing 'Pluvio'
RS485
Pt100
RS485
< 1 min/h
El. indicator 'SONI'
RS422
1 / min
0,3 m/s
Cup anemometer
pulses
4/s
Gray-code
4/s
0,3 K
5°
Wind vane
Abteilung Messnetze und Daten
Precipitation sensor
Ott ‚Pluvio‘
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Abteilung Messnetze und Daten
Observer‘s terminal:
Kopfzeile
Deutscher Wetterdienst - AMDAIII/S
main menue
20.05.2001
0001
Meteorologische Informationen eingeben
Aktuelle Messwerte anzeigen
Anzeige- und
Eingabebereich
Messwertverläufe anzeigen
Abgesandte Meldungen anzeigen
Systeminformationen anzeigen/ändern
Arbeit beenden
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Input met. Information
actual values
time series
sent messages
display/change system parameters
quit
Abteilung Messnetze und Daten
Observer‘s activities
send messages at fixed time of the day:
- precip. height (control measurem.), snow depth,
- state of the ground
- estimation of wind, cloudiness, visibility
send messages of continuous weather with general time indications or exact time intervals:
- falling precipitation: y/n, type, intensity, frequency
- deposited precipitation: dew, rime, slippery ice/snow
- extraordinary weather appearances: electrical / optical phenomena, turbidity, extreme wind,...
Display data, messages and system information
Simple maintenance of sensors, set sensor status
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Abteilung Messnetze und Daten
Features of the station network center
-
Calling data sets of time averages / sums of 1 min, 10 min, 1 h, 24 h of met. quantities
Calling intervals: 1 h for ‚S‘ and ‚W‘ stations, 24 h for ‚N‘ stations,
other intervals: configurable,
and immediate calls
- Receiving data on:
incidents of exceeding thresholds of wind or precip. or certain weather penomena, system errors
- Network monitoring from any site of DWD intranet:
software update, configuration of station groups, survey of individual stations
- Central data base
- Backup System
- Provisions for IT safety
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LandesZentralen
Lokale
Nutzer
Abteilung Messnetze und Daten
Externe Nutzer
ISDN-Netzwerk
AMDA/III
ISDN-Netzwerk
Service-PC
Access-Router
Access-Router
Access-Router
Ethernet
Firewall
MN2000_GW
Ethernet
DATEN_S
MN2000
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MN2000_S
Workstation mit
Service-Applet
HP OV
Manager
Cisco-Secure Server
(Cluster)
Scheme of the network
composition
Abteilung Messnetze und Daten
Quality assurance of data
1. Provisions at the station:
- Range check
- Variability check
- Generation of a quality byte for each value sent to the network center
- Alarm generation
2. Provisions at the network center
- Off-line quality control and monitoring system (see Spengler, R., Proc. TECO2002,
Dibbern, J., Proc. TECO2005)
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Abteilung Messnetze und Daten
AMDA III / N stations:
24 h sums of precipitation
region: NW-Germany
date: 20 Nov 06, 05.50
Screenshot of
QUALIMET
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Abteilung Messnetze und Daten
System modification and maintenance
From the view of resources : expected long lifetime of the network
(but no more support from system provider)
Station software:
Station hardware:
new requirements
from users, remove faults
- components on store
modifications: who can do it ?
- test new marketable components
and implement existing software
Developers ? (if at hand)
DWD staff: keeps system knowledge
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Network center:
merging with synopt. network
center in preparation
Abteilung Messnetze und Daten
Final remarks
Benefits of the new network :
Improvement of climatological / hydrological data
- less expenditure for observers: less errors
- fast availability, time resolution of data
- increased quality by on-line algorithms, monitoring programs, new hardware
Profits for additional users: availability of actual data
- AMDA III / S data: complement the synopical station network
- AMDA III / N data: useful for flood modelling/forecasting
- AMDA III / W data: warning management
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Abteilung Messnetze und Daten
Thank you
for
attention
TECO-2006, 4 dec 2006, Geneva