Request for Information: Scanning Doppler imager (SDI)
Buyer: Ilmatieteen laitos
- Published
- 18 December 2024
- Place of performance
- FI1B1
- Lots
- 1
- Documents
- 1
- Notice number
- 00773969-2024
- Official source
- Official source
CPV codes
- 38000000Equipo de laboratorio, óptico y de precisión (excepto gafas)
Description
This document is not a procurement announcement or a request for tender, but a detailed market survey, i.e. a request for information. This document does not oblige the Finnish Meteorological Institute to carry out the procurement. The information provided does not bind any party to the market survey. As part of a science project funded by the European Research Council, the Finnish Meteorological Institute is planning to purchase an all-sky type Fabry-Perot interferometer (hereafter called Scanning Doppler Imager, SDI). The instrument will measure neutral winds and neutral temperatures at two altitudes in the thermosphere by making use of green-line (558 nm) and red-line (630.0 nm) emissions. The former will provide measurements corresponding to an altitude of approximately 110 km, whereas the latter will provide measurements corresponding to an altitude of approximately 240 km. The principle of the measurement will be the quantification of the Doppler shift and broadening of the emission lines. The SDI system should fulfil the following list of technical specifications: 1. The instrument should be composed of a capacitance-stabilised etalon capable of piezoelectric separation …
Official publications
- TED · 00773969-2024 · 18 December 2024
- OJS · 246/2024 · 18 December 2024
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