MetBroker |
Introduction
Advantages:
- MetBroker-compatible models can be run against any linked database
- When a new database is linked, compatible models can use it immediately (no recompilation...)
- If a database changes (eg from file-based to relational), you don't need to change your models
- Java beans make it easy to develop MetBroker-linked applications
- Open source code under GNU LGPL
- Utility classes for handling weather data
MetSOAP
Directly access MetBroker from Excel spreadsheets, Visual Basic, Delphi, ASP and more with MetSOAP
Demos
| Click to Run | Applet | Description | Pictures |
|---|---|---|---|
| Data access | Retrieve data from any MetBroker database (prototyped by Akira Otuka) For a quick look choose the AMeDAS database (no username or password required), Ibaraki prefecture, Tsuchiura station, rainfall, temperature and wind daily. | i-mode compatible | |
| Recent weather |
 |
Graphs the latest weather from any MetBroker linked station. | picture |
| Data access |
|
Retrieves data from any MetBroker database. See what data is available from each station. | Data available from Tsuchiura weather station, in Japan |
| Climatic risk |
|
Calculates risk of extreme weather events from historical data. | Risk of frosts in Hawkes Bay, NZ |
| Surface Wetness Energy Balance (SWEB) |
|
Estimates leaf wetness based on standard weather measurements. | Calculated and actual leaf wetness at CheolWon in Korea |
| Crop, Pest and Disease models | Link to a page with many agricultural applets developed by Kei Tanaka | ||
| Multiple broker demos | Link to a page with many agricultural applets developed by Kei Tanaka | ||
| Biomass simulation demos |
|
Link to a page demonstrating biomass simulation of Hyacinth and its natural enemy using MetBroker. | picture |
Applet links above should install the Java Plug-in if required. Click here to download the Plug-In from Sun if it doesn't load automatically.
If you access the Web through a proxy server, please open the Java Plug-in Control Panel, choose the tab "Advanced" and enter the following in the field "Java Runtime Parameters"
-Dhttp.proxyHost="your HTTP proxy server host name or IP address" -Dhttp.proxyPort="the port your HTTP proxy server listens on"
Databases
| Country | Description | Stations | Start | Res. |
|---|---|---|---|---|
| Japan | MAFF's database of AMeDAS data | 1479 | 1976 | hourly |
| Japan | Wakayama Rainfall data | 137 | 2001 | hourly |
| USA | Oregon Integrated Plant Protection Center (NorthWest) | 152 | 1996 | daily |
| USA | Long Term Ecological Research Network (ClimDB) | 60 | 1964 | daily |
| USA | Georgia Automated Environmental Monitoring Network | 46 | 1997 | daily |
| Norway | Planteforsk Crop Research Institute | 33 | 1987 | hourly |
| New Zealand | HortPlus Ltd | 39 | 1996 | hourly |
| USA | Florida Automated Weather Network | 18 | 1996 | 15 min |
| Japan | Kanagawa Prefecture Agricultural Research Station Network | 14 | 1998 | hourly |
| South Africa | South African Sugar Association network | 13 | 1997 | daily |
| Korea | Seoul National University Plant Disease and Epidemiology Lab | 11 | 1993 | hourly |
| Japan | Hokkaido Memuro MAMEDAS | 8 | 2000 | hourly |
| Japan | Chiba and Tottori Prefectural Research Stations | 3 | 1986 | hourly |
| Japan | FieldServer project | 3 | 2002 | 10 min |
| password req. | ||||
| New Zealand, Pacific Antarctica | National Climate Database | 6547 | 1853 | hourly |
| United Kingdom | Horticulture Research International | 2 | 1919 | daily |
| Taiwan | Taiwan Ecological Research Network | 7 | 1995 | daily |
| USA | Washington State University Public Agricultural Weather System | 60 | 1987 | 15 min |
Documentation
Documentation for MetBroker JavaBeans (javadoc)
API details for client application developers (javadoc)
Support
Other
MetBroker's logo derives from a pounamu (greenstone/jade) carving I saw among other fine artworks at Aotearoa.co.nz. The carving is of a koru (emerging fern shoot), an important symbol in New Zealand Maori art,and its spiral shape reminds me of weather patterns.
