Niwot Ridge SiteBytes 2007

LTER Site: Niwot Ridge LTER (NWT)

Contributor: T. M. Ackerman (Aug 01, 2007)

Site Byte:

1. Annual Site Byte

This year was our mid-term site review. The review process proved once again a trying but very important process. The comments from the review team were extremely helpful and will result in an improvement in our IM system.

This year also saw Niwot Ridge being selected as a Core Site for the NEON.

Our Relational Database server was upgraded from MSSQL 2000 to MSSQL 2005. The production database server (Dell PowerEdge 500SC) has been upgraded to a more powerful server (Dell PowerEdge 2600) capable of handling more requests. We migrated the existing databases designed in Microsoft SQL Server 2000 to redesigned SQL Server 2005. Currently this server is handling the generation of the EML metadata, and once version upgrade issues are resolved, will be able to allow query of the climate data. All of the meteorological data that collected via the wireless radios are imported into the current schema.

Three sites have recently been enhanced with High Throughput radios which support Ethernet as well as serial communications. The Ethernet communications are in use at the Soddie lab in order to remotely control and manage the computer which interfaces with the instrumentation. These radios allow for troubleshooting problems quickly, previously such problems may have gone weeks without notice. The installation of these radios has saved time and energy for researchers and MRS personnel adding the ability to perform minor tasks such as changing data logger programs or rebooting upon system failure.

A wireless connection from the MRS to Boulder replacing the current T1 connectivity is in development. The current system consists of a fiber optic line from the Tundralab to the MRS and a T1 from the MRS to the world. The new system will consist of the existing fiber optic line from the MRS to the Tundralab and a wireless connection from the Tundralab to the world with a bandwidth of 3mbs. We have installed two relay stations, ground-truthed the sites, and are currently awaiting the installation of the receiver on the CU campus.

The precipitation and temperature datasets for C-1 (1952-2006), Saddle (1981-2006), and D-1 (1952-2006) have been analyzed in order to fill in missing values and correct erroneous values. Adjacent sites were used to statistically insert values. These new datasets provide more a robust ability to look at some of the longest continuous high elevation climate data sets.

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2. Planned IM Projects

1) Improve Site Research Application to include formal project definitions, for better data acquisition tracking.
2) Web metadata form.
3) Attempt to get data into eml file.
4) Climate data query system.