1. Automatic Weathers Stations
DWD
Automatic Weathers Stations
on Sea
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

2. Systems in Operation (03/11)
16 Ships
3 Lightvessels
2 Lighthouses
3 Buoys
1 Navigational Beacon
2 E-SURFMAR Ships
1 SCAWS
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

3. Types of stations Ships + Buoys Lightvessels Lighthouses
position and direction variable
standard set of sensors
FM-13 SHIP (Fishery Protection Vessels delayed in GTS)
Lightvessels
position fixed, direction variable
standard set of sensors plus sunshine plus visibility
FM-12 SYNOP
Lighthouses
position and direction fixed
standard set of sensors plus sunshine
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

4. Weather stations on sea (fixed positions)
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

5. Functionalities
Automatic acquisition of meteorological data at exposed positions at sea
certified according to DIN ISO 9001:2000
Supply of meteorological data for national and international programs and models
Forecasts of various institutions (DWD, BSH, WSA, HPA, ...)
Data is routed into GTS for EUMETNET, NMS, ...
Data can be used as reference for satellite soundings
Supply of meteorological data onboard (for Scientists)
proprietary NMEA 0183 telegram
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

6. MILOS – System Overview
Central Unit (MILOS)
Sensors (wind, temperatures, humidity, pressure)
Extra sensors (sunshine, visibility)
NMEA Source (position, movement, heading)
DCP (satellite communication)
PC (visualisation, acquisition of visual observations)
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

7. Datalogger MILOS Central unit of the AWS
central point of star shaped cabling
Collects and processes sensor and NMEA data
I/O: analogue, digital, serial
Generates permanent data output (for scientists)
floating 1-min mean values
Provides data for visualisation (PC on bridge)
current values and graphical trends
Generates FM-13 SHIP (hourly)
weather report, sent via DCP
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

8. Standard Sensors Wind Temperature (Air) Temperature (Water) Humidity
Thies (WR: 8bit Gray-Code, WG: Hz = 0,3..50m/s)
Temperature (Air)
Friedrichs PT100 ( °C)
Temperature (Water)
Friedrichs PT100 in plung-in-welder, or DWD PT100 magnet type ( °C)
Humidity
Rotronic MP-100 or Vaisala HMP45D (0..100%)
Pressure
AIR DB-1A or Vaisala PTB220A with inlet on deck ( hPa)
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

9. Extra Sensors Sunshine Visibilty Compass (for true wind calculation)
Siggelkow Soni E2 (TTL-Level Yes/No)
Visibilty
Impuls-Physik Fumosens IV (100m..10km)
Compass (for true wind calculation)
Thales 3011 GPS-Compass
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

10. Software Runs on Standard Windows-PC (needs serial link)
Facility to enter visual observations with help system
Visualisation of all data
Backup of some data
PC and Software optional
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

11. ABWST Mk II – System Overview
Wind
Pressure
Humidity
Temp (Air)
Temp (Water)
Navigation
Radiation
Central-Unit
(CR1000)
Weather Report (1/h)
Scientific System (1/s)
Service
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

12. Sensors Wind Air Radiation Navigation Thies Ultrasonic-Anemometer
Pressure: Vaisala PTB220
Temperature: Ketterer LTS 2000 (PT100)
Humidity: Rotronic MP101
Radiation
DSR: Kipp & Zonen CMP21 Pyranometer
DLR: Kipp & Zonen CGR4 Pyrgeometer
Navigation
Thales 3011 GPS-Compass (RMC + HDT) or single antenna GPS (RMC)
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

13. Dataoutput Permanent output (once per second) Weather report (hourly)
proprietary NMEA telegram ($PDWDC,...)
$PDWDC,YYMMDD,HHMMSS,DDMM.m,DDDMM.m,SS.s,CCC,c,HHH.h,WDR.r,WSR.r,WDT.t,WST.t,TA.a,UUU.u,PRRR.r,PNNN.n,TW.w,RSW.w,RLW.c,RLW.s,TLW.s,,,
raw data, no preprocessing (mean,...)
with dead time for slow sensors (i.e. pressure)
with timestamp (UTC) and position (from navigational data)
Weather report (hourly)
FM13 – SHIP (BBXX...), transmission with DCP
with unmasked (Dxxx) or masked callsign (SCADExx)
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

14. Datatransmission
One report per hour (poss. + 1 x BSH / TS, poss. + 6 x Storm)
No transmission costs
Quality: approx. 92% average (16 AWS, 62.9%..99.9%)
Dataflow:
METEOSAT
GTS
DWD AWS
EUMETSAT Darmstadt
DWD Offenbach
DWD Hamburg
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

15. Future Plans New stations Conversion of fixed Stations to Ships
some new ships in pipeline – Schwedeneck, Sonne
Conversion of fixed Stations to Ships
Fehmarn Belt and Bake Zulu will be converted to Ships (FM-13)
Milos replacement
see TT-AWS, TT-on-T
High Datarate DCPs
will be introduced in ?
more data, more often, binary data possible
DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

16. DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

17. DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua

18. DWD TI33 A4, Henry Kleta
March 2011, VOS-TAG-8, Genua