Deutscher Wetterdienst DWD Automatic Weathers Stations on Sea

Deutscher Wetterdienst DWD Automatic Weathers Stations on Sea DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Systems in Operation (03/11) q 16 Ships q 3 Lightvessels q 2 Lighthouses q 3 Buoys q 1 Navigational Beacon q 2 E-SURFMAR Ships q 1 SCAWS DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Types of stations q Ships + Buoys position and direction variable standard set of sensors FM-13 SHIP (Fishery Protection Vessels delayed in GTS) q Lightvessels position fixed, direction variable standard set of sensors plus sunshine plus visibility FM-12 SYNOP q Lighthouses position and direction fixed standard set of sensors plus sunshine FM-12 SYNOP DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Weather stations on sea (fixed positions) DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Functionalities q Automatic acquisition of meteorological data at exposed positions at sea certified according to DIN ISO 9001: 2000 q 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 q Supply of meteorological data onboard (for Scientists) proprietary NMEA 0183 telegram DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst MILOS – System Overview q Central Unit (MILOS) q Sensors (wind, temperatures, humidity, pressure) q Extra sensors (sunshine, visibility) q NMEA Source (position, movement, heading) q DCP (satellite communication) q PC (visualisation, acquisition of visual observations) DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Datalogger MILOS q Central unit of the AWS central point of star shaped cabling q Collects and processes sensor and NMEA data I/O: analogue, digital, serial q Generates permanent data output (for scientists) floating 1 -min mean values q Provides data for visualisation (PC on bridge) current values and graphical trends q Generates FM-13 SHIP (hourly) weather report, sent via DCP DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Standard Sensors q Wind Thies (WR: 8 bit Gray-Code, WG: 3. . 1042 Hz = 0, 3. . 50 m/s) q Temperature (Air) Friedrichs PT 100 (-40. . 60°C) q Temperature (Water) Friedrichs PT 100 in plung-in-welder, or DWD PT 100 magnet type (-10. . 40°C) q Humidity Rotronic MP-100 or Vaisala HMP 45 D (0. . 100%) q Pressure AIR DB-1 A or Vaisala PTB 220 A with inlet on deck (800. . 1060 h. Pa) DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Extra Sensors q Sunshine Siggelkow Soni E 2 (TTL-Level Yes/No) q Visibilty Impuls-Physik Fumosens IV (100 m. . 10 km) q Compass (for true wind calculation) Thales 3011 GPS-Compass DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Software q Runs on Standard Windows-PC (needs serial link) q Facility to enter visual observations with help system q Visualisation of all data q Backup of some data q PC and Software optional DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst ABWST Mk II – System Overview Wind Central-Unit (CR 1000) Pressure Weather Report (1/h) Humidity Temp (Air) Temp (Water) Scientific System (1/s) Navigation Radiation Service DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Sensors q Wind Thies Ultrasonic-Anemometer q Air Pressure: Vaisala PTB 220 Temperature: Ketterer LTS 2000 (PT 100) Humidity: Rotronic MP 101 q Radiation DSR: Kipp & Zonen CMP 21 Pyranometer DLR: Kipp & Zonen CGR 4 Pyrgeometer q Navigation Thales 3011 GPS-Compass (RMC + HDT) or single antenna GPS (RMC) DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Dataoutput q Permanent output (once per second) 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) q Weather report (hourly) FM 13 – SHIP (BBXX. . . ), transmission with DCP with unmasked (Dxxx) or masked callsign (SCADExx) DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Datatransmission q One report per hour (poss. + 1 x BSH / TS, poss. + 6 x Storm) q No transmission costs q Quality: approx. 92% average (16 AWS, 62. 9%. . 99. 9%) q Dataflow: DWD AWS DWD TI 33 A 4, Henry Kleta METEOSAT EUMETSAT Darmstadt DWD Offenbach GTS DWD Hamburg March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst Future Plans q New stations some new ships in pipeline – Schwedeneck, Sonne q Conversion of fixed Stations to Ships Fehmarn Belt and Bake Zulu will be converted to Ships (FM-13) q Milos replacement see TT-AWS, TT-on-T q High Datarate DCPs will be introduced in ? more data, more often, binary data possible DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua

Deutscher Wetterdienst DWD TI 33 A 4, Henry Kleta March 2011, VOS-TAG-8, Genua