Assessment of Material and Energy Flow in Wet Ecosystems | Tenderlake

Assessment of Material and Energy Flow in Wet Ecosystems

Contract Value:
EUR 101K - 101K
Notice Type:
Contract Notice
Published Date:
20 February 2026
Closing Date:
25 March 2026
Location(s):
SK041 Prešovský kraj (SK Slovakia/SLOVENSKO)
Description:
The procurement involves the supply of a meteorological station for measuring atmospheric and soil conditions, two systems for monitoring transpiration flow and trunk growth on trees, and maintenance services for these measurement systems.

Assessment of material and energy flow in wet ecosystems: The subject of the public procurement is a meteorological station for profile measurement of air temperature/humidity, wind speed, soil temperature/humidity - a meteorological station with a height of 12 meters for collecting data on atmospheric and soil conditions at multiple height levels. We require a robust and modular system that allows for the installation of various sensors for accurate and long-term monitoring.

Two systems for measuring transpiration flow and trunk growth on 10 trees with simultaneous measurement of meteorological-soil parameters - a system for measuring transpiration flow based on the principle of quantifying the amount of heat carried away by the flow of water through a pre-defined space of conductive xylem. It consists of sensors and accessories that ensure continuous measurement of transpiration flow and continuous measurement of changes in trunk circumferences on 10 individuals (trees).
Maintenance and calibration of the systems for measuring flows and greenhouse gas balances - the aim is to ensure regular monitoring, potentially servicing special sensors in the EC systems, including their disassembly and relocation to another site if the monitored ecosystem has been damaged.

The contract is divided into 3 parts:
1st part: Meteorological station for profile measurement of air temperature/humidity, wind speed, soil temperature/humidity

2nd part: Two systems for measuring transpiration flow and trunk growth on 10 trees with simultaneous measurement of meteorological-soil parameters

3rd part: Maintenance and calibration of systems for measuring flows and greenhouse gas balances


LOT-0001
Meteorological station for profile measurement of air temperature/humidity, wind speed, soil temperature/humidity.
Meteorological station for profile measurement of air temperature/humidity, wind speed, soil temperature/humidity. Detailed specifications of the subject of the contract are provided in the attachment to the competitive documents.


LOT-0002
Two systems for measuring transpiration flow and trunk growth on 10 trees with simultaneous measurement of meteorological-soil parameters.
Two systems for measuring transpiration flow and trunk growth on 10 trees with simultaneous measurement of meteorological-soil parameters. Detailed specifications of the subject of the contract are provided in the attachment to the competitive documents.


LOT-0003
Maintenance and calibration of systems for measuring flows and greenhouse gas balances.
Maintenance and calibration of systems for measuring flows and greenhouse gas balances. Detailed specifications of the subject of the contract are provided in the attachment to the competitive documents.

The Buyer:
Správa Tatranského národného parku so sídlom v Tatranskej Lomnici
Additional information:
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Additional document: Súťažné podklady
CPV Code(s):
38300000 - Measuring instruments