The following examples demonstrate possible methods for the integration of data
from multiple sensor data sources into a single webpage for data visualization and exploration. These are quick conceptual demonstrations, and are in no way complete or compreshensive*.
EFR Tower Climate Data: These climate and webcam data are pushed by each individual site to central servers and are updated at regular intervals (daily for climate) or instantaneously upon page reload (webcam).

Weir Data: In this example, 15 minute data are pulled from the USGS Water database (http://waterdata.usgs.gov/nwis/inventory, via wget) and the database on the HBR-LTER server (database query on data pushed here from HBR every hour). If this is slow to load, try this hourly or daily link. Sites included here are Hubbard Brook, Sleepers River, Bear Brook, and Ipswich River.
Map View: Here you will find an example of the Hubbard Brook weir data (shown above), linked to the geographic location of each weir. In this mapserver implementation, attribute data are stored in a relational database, and queries (map clicks) link geographic locations with these underlying data. When you link to this site, expand the Hubbard Brook layers, select the checkboxes on the top two 'weir' layers (and others if you want!). When you click on the red diamond, a popup window will display a graph of WeirHeight. Right clicking on the layer text will allow you to zoom to the extent of the layer, to raise/lower the layer, and to connect to metadata. You can also set the background layer to map/topo(physical)/satellite at the top of the layer list, and you can display the legends for active layers by using the 'legend' tab. Additional map navigation/zoom/query tools are in the upper left corner of the map.
On the map site, you will also find a data layer for EFR sites. Use the 'i' button in the upper left corner of the map and click on a site - this can be configured to pop up any of the other live data feeds (and additional descriptive data) that you have seen in these links.
In all of links above, these data are either pulled from an external server, or pushed to a local server - the frequency of this automatic updating process can be configured as needed.
PnET RealTime model. This earlier project developed an integration of PnET-day with realtime climate forecast data
(http://www.jcoot.unh.edu/forecasts/forecasts.html, gridded at 9km resolution for the Northeast). Climate forecast variables (Tmin,Tmax,MeanSolarFlux, Precip) are used as input to PnET-day, with output of gross primary production (gC m^2 day^1). Data can be viewed here by selecting a single date, or a range of dates for an animated view.
Please note that these demos are quick prototypes for discussion purposes.These links will be updata as data visualization products develop. For more information, comments, and suggestions, please contact mary.martin@unh.edu
*Some of the functionality on these pages is based on javascript. Interactive graphs should work in firefox or chrome with javascript enabled. It is more challenging to get these to work with the standard USFS InternetExplorer browser configuration - please be patient.