User contributions
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- 01:23, 23 November 2013 (diff | hist) . . (0) . . N File:Dwl.2a.jpg (top)
- 01:23, 23 November 2013 (diff | hist) . . (0) . . N File:Dwl.1.jpg (top)
- 01:20, 23 November 2013 (diff | hist) . . (+4,267) . . N DWL Operational Use (Created page with "Portable autonomous Doppler lidar systems have been developed using new solid-state fibre-optic technology using coherent heterodyne detection to derive the Doppler shift of a...") (top)
- 01:18, 23 November 2013 (diff | hist) . . (0) . . N File:Techno.jpg (top)
- 01:17, 23 November 2013 (diff | hist) . . (0) . . N File:Los.jpg (top)
- 01:17, 23 November 2013 (diff | hist) . . (+1,182) . . N DWL Fundamentals (Created page with "The LIDAR is an active remote sensor using a laser as an emitter. The LIDAR emits short pulses of light into the atmosphere. The emitted radiation encounters diffusion by atmo...") (top)
- 01:16, 23 November 2013 (diff | hist) . . (0) . . N File:SoIE.jpg (top)
- 01:15, 23 November 2013 (diff | hist) . . (+1,347) . . N Doppler Wind Lidar (Created page with "== Introduction == Active remote sensing methods, particularly Lidar methods, have demonstrated their ability to provide wind measurements through the atmosphere from ground-...") (top)
- 01:13, 23 November 2013 (diff | hist) . . (+1,995) . . N Cloud radar challenges (Created page with "== Calibration == The calibration of the radar is necessary when the reflectivity factor is used to derive quantitative cloud parameters. Radar systems can be calibrated abso...") (top)
- 01:13, 23 November 2013 (diff | hist) . . (+3,019) . . N Cloud radar practical aspects (Created page with "During the last decades millimeter-wave radars have been established as valuable systems for remote sensing of cloud processes and structures, whereas the number of systems in...") (top)
- 01:12, 23 November 2013 (diff | hist) . . (+5,882) . . N Cloud radar error characteristics (Created page with "== Error characteristics == Despite of the good performance of cloud radars the accuracy of reflectivity <math>Z</math> measurements may be crucial especially for the estimati...") (top)
- 01:11, 23 November 2013 (diff | hist) . . (0) . . N File:AvailabilityMIRA 2004 2011.png (top)
- 01:10, 23 November 2013 (diff | hist) . . (+2,943) . . N Cloud radar operational use (Created page with "Although, currently cloud radar data are not assimilated by Numerical Prediction Models (NWP) a continuous monitoring of the vertical cloud structure is very useful for evalua...") (top)
- 01:09, 23 November 2013 (diff | hist) . . (0) . . N File:Figure1.jpg (top)
- 01:08, 23 November 2013 (diff | hist) . . (+6,204) . . N Cloud radar fundamentals (Created page with "<h2 id="fundamentals">Fundamentals</h2> Basics of radar principles and their application in meteorology are described in e.g. [http://onlinelibrary.wiley.com/doi/10.1002/qj.49...") (top)
- 01:03, 23 November 2013 (diff | hist) . . (0) . . N File:Img 6482 jpg.gif (top)
- 01:02, 23 November 2013 (diff | hist) . . (0) . . N File:MIRAnew MOL.png (top)
- 01:01, 23 November 2013 (diff | hist) . . (+1,931) . . N Cloud radar (Created page with "== Introduction == Traditionally the focus of radar in meteorology has been on the detection and analysis of precipitation distribution and dynamics. With the emphasis on und...") (top)
- 01:10, 22 November 2013 (diff | hist) . . (+9,778) . . N RWP Challenges (Created page with "== Scientific challenges == As for every non-trivial problem, a number of questions remain which have not been convincingly answered yet. It is the purpose of this section to...") (top)
- 01:08, 22 November 2013 (diff | hist) . . (0) . . N File:PictureDirCoupler.png (top)
- 01:07, 22 November 2013 (diff | hist) . . (0) . . N File:PictureAtt.png (top)
- 01:06, 22 November 2013 (diff | hist) . . (0) . . N File:PicturePPM.png (top)
- 01:05, 22 November 2013 (diff | hist) . . (0) . . N File:PictureFieldFox.png (top)
- 01:04, 22 November 2013 (diff | hist) . . (+844) . . N Instruments and Components (Created page with "Here is a list of ideal field instruments and HF components for maintenance of wind profilers: {| |- | 200px || Network and spectrum analyzer Fie...") (top)
- 01:04, 22 November 2013 (diff | hist) . . (+482) . . N Typical Losses of HF Components (Created page with "{| ! align="left"|Component description !! align="left"|Loss |- | Connectors || 0.1 - 0.2 dB |- | irculator / Limiter || 0.3 0.5 dB |- | Switches || 0.2 - 0.3 dB |- | Cable RG...") (top)
- 01:03, 22 November 2013 (diff | hist) . . (+142) . . N Annexe (Created page with "Vaisala Configuration File Typical Losses of HF Components Instruments and Components Back to RWP Maintenance in CWINDE") (top)
- 01:03, 22 November 2013 (diff | hist) . . (+2,617) . . N Spare Parts Policy (Created page with "Spare parts can be split into two categories: 1) Consumable parts 2) Parts to be replaced less often or following exceptional events. For both Vaisala and Degréane wind ...") (top)
- 01:02, 22 November 2013 (diff | hist) . . (+843) . . N D3: S-parameter (S11) of antenna (Created page with "== Purpose == This procedure allows to measure the reflectivity of each antenna. A high reflectivity can be due to a broken antenna or to a bad match. Check connectors and ca...") (top)
- 01:01, 22 November 2013 (diff | hist) . . (0) . . N File:PicturePowerDegreane.png (top)
- 01:00, 22 November 2013 (diff | hist) . . (+1,069) . . N D2: Emitted power and pulse width (Created page with "== Purpose == This procedure allows to verify the peak power emitted by the amplifier. == Remarks == Attention, this procedure includes measurements of high power radiatio...") (top)
- 00:59, 22 November 2013 (diff | hist) . . (0) . . N File:PictureAmpInputDegreane.png (top)
- 00:59, 22 November 2013 (diff | hist) . . (+1,316) . . N D1: Losses in Tx chain (Created page with "== Purpose == This procedure allows to determine losses in the transmit chain at low power. It helps to identify eventually broken components in the transmit chain (e.g. circ...") (top)
- 00:58, 22 November 2013 (diff | hist) . . (0) . . N File:PictureVSWRVaisala.png (top)
- 00:58, 22 November 2013 (diff | hist) . . (+924) . . N V6: Standing wave ratio (Created page with "== Purpose == This procedure allows to determine the amount of energy that is reflected directly by the antenna due to non-perfect match. == Remarks == The VSWR (S11) para...") (top)
- 00:57, 22 November 2013 (diff | hist) . . (0) . . N File:SchemaRangeCalibVaisala.png (top)
- 00:56, 22 November 2013 (diff | hist) . . (+1,127) . . N V5: Range calibration (Created page with "== Purpose == This procedure is necessary to calibrate the signal delay to range attribution. == Remarks == Note on the equipment to be used: starting with the power level...") (top)
- 00:55, 22 November 2013 (diff | hist) . . (+5,937) . . N Vaisala Configuration File (Created page with " Vaisala Configuration File // Configuration Editor file for: // Two Winds, 1290 MHz, no RASS [GLOBAL] { } [DWELLMODES] { MODENAME = WA { iAddtoDir = 0; ...") (top)
- 00:54, 22 November 2013 (diff | hist) . . (0) . . N File:PicturePowerVaisala.png (top)
- 00:53, 22 November 2013 (diff | hist) . . (0) . . N File:SchemaPowerVaisala.png (top)
- 00:53, 22 November 2013 (diff | hist) . . (+421) . . V4: Emitted power and pulse width (top)
- 00:51, 22 November 2013 (diff | hist) . . (+1,032) . . N V4: Emitted power and pulse width (Created page with "== Purpose == Check of the control signals and of the emitted pulse of the Modulator, IF and Interface unit (MII). == Remarks == The procedure can also be found in the Fac...")
- 00:50, 22 November 2013 (diff | hist) . . (0) . . N File:SchemaLogicTimingVaisala.png (top)
- 00:50, 22 November 2013 (diff | hist) . . (+1,032) . . N V3: Radar signals (Created page with "== Purpose == Check of the control signals and of the emitted pulse of the Modulator, IF and Interface unit (MII). == Remarks == The procedure can also be found in the Fac...") (top)
- 00:49, 22 November 2013 (diff | hist) . . (+567) . . N V2: Local oscillator signal (Created page with "== Purpose == The signal of the local oscillator is used to convert the signal from low (intermediate frequency IF) to high (radio frequency RF) frequencies. It has to be sta...") (top)
- 00:48, 22 November 2013 (diff | hist) . . (+926) . . N V1: Noise level and electromagnetic perturbations (Created page with "== Purpose == This procedure allows to determine the level of the noise, that is generated inside the reception chain. The noise level should be low and constant. An increasin...") (top)
- 00:48, 22 November 2013 (diff | hist) . . (+708) . . N Maintenance Procedures (Created page with "The following measurements are standard measurements for a wind radar. Good practice is to perform these measurements in regular intervals, always in exactly the same way to h...") (top)
- 00:47, 22 November 2013 (diff | hist) . . (+3,160) . . N Maintenance Items (Created page with "This section gives an incomprehensive list of items to be checked on regular intervals, in order to maintain the wind profiler in good state and to avoid system failures. The ...") (top)
- 00:46, 22 November 2013 (diff | hist) . . (+1,031) . . N E-WINPROF (Created page with "[http://www.eucos.net/nn_133388/EN/Home/networks/winprof/winprof__node.html?__nnn=true E-WINPROF] is a programme of [http://www.eucos.net/cln_031/EN/Home/eucos__node.html?__nn...") (top)
- 00:45, 22 November 2013 (diff | hist) . . (+126) . . N RWP Maintenance in CWINDE (Created page with "E-WINPROF Maintenance Items Spare Parts Policy Maintenance Procedures Problems & Solutions Annexe") (top)
- 00:45, 22 November 2013 (diff | hist) . . (+9,438) . . N RWP Practical aspects (Created page with "There can be no doubt that high-quality wind observations of RWP are beneficial for [http://en.wikipedia.org/wiki/Numerical_weather_prediction NWPM]. The challenge of operatio...") (top)
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