- Anemometer
Image Wea00920.jpg thumb A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson File Anemometer 2745.JPG thumb Cup type anemometer with vertical axis, a sensor on a remote ..., 2009. An anemometer is a device for measuring wind speed, and is a common weather station instrument ... of an anemometer was given by Leon Battista Alberti around 1450. ref Invention of the Meteorological ... and the speed, an anemometer designed for one will give information about both. Velocity anemometers Cup anemometers A simple type of anemometer, invented 1846 by Dr. John Thomas Romney Robinson ... wind speed for a wide range of speeds. On an anemometer with four cups it is easy to see that since ... first designed his anemometer, he asserted that the cups moved one third of the speed of the wind ..., the anemometer factor, depends on the dimensions of the cups and arms, and may have a value between two and a little over three. Every experiment involving an anemometer had to be repeated. The three cup anemometer developed by the Canadian John Patterson in 1926 and subsequent cup improvements ... when it was at 45 degrees to the wind flow. The three cup anemometer also had a more constant torque and responded more quickly to gusts than the four cup anemometer. The three cup anemometer was further .... Image Wind speed and direction instrument NOAA.jpg left thumb A windmill style of anemometer Windmill anemometers The other forms of mechanical velocity anemometer may be described as belonging to the windmill type or propeller anemometer. In the Robinson anemometer the axis of rotation is vertical ... sensors hot wires hot wires intro.cfm title Hot wire Anemometer explanation publisher ... can be further classified as CCA Constant Current Anemometer , CVA Constant Voltage Anemometer and CTA Constant Temperature Anemometer . The voltage output from these anemometers is thus the result ... anemometer. The laser is emitted 1 through the front lens 6 of the anemometer and is backscattered ... more details
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- Vane anemometer
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Image Wind speed and direction instrument NOAA.jpg right 200px thumb A vane anemometer A vane anemometer is a type of anemometer , a meteorology meteorological instrument used to measure wind speed . The vane anemometer can also measure wind direction. A vane anemometer which uses a small fan is turned by air flowing over the vanes. The speed of the fan is measured by a rev counter and converted to a windspeed by an electronic chip. Hence, volumetric flowrate may be calculated if the cross sectional area is known. DEFAULTSORT Vane Anemometer Category Meteorological instrumentation and equipment Climate stub ... more details
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- Anemometer Hill
Orphan date December 2010 Anemometer Hill coor dm 68 11 S 67 0 W is a hill 25 m high northeast of Fishtrap Cove on Stonington Island , Marguerite Bay . Surveyed by the East Base party of the U.S. Antarctic Service , 1939 41, which built its base on this island . So named by United Kingdom Antarctic Place Names Committee UK APC because the hill was the site of an anemometer in 1961. usgs gazetteer Category Geography of Antarctica WAntarctica geo stub ... more details
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- C3C
C3C is an abbreviation that can stand for Cadet Third Class , the rank of a cadet in his or her second sophomore year at the United States Air Force Academy Civilization III Conquests , an expansion for the computer game Civilization III C3C Anemometer from Second Wind company Second Wind disambig ... more details
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- Vane
wiktionary vane see also Vane surname Vane may refer to Cooper vane Vane anemometer Weather vane Vane city A vane is also each of the parts besides the shaft in a pennaceous feather disambig da Vane de Vane zh yue Vane ... more details
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- Zephir
Zephir may refer to a fictional character associated with Babar the Elephant rail road shunting vehicles manufacturer, see Rail car mover the lidar anemometer ZephIR developed by QinetiQ and licensed to Natural Power See also Zephyr disambiguation disambig ... more details
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- File:Eddy Covariance IRGA Sonic.jpg
Summary This is an open path eddy covariance system, consisting of an ultrasonic anemometer to measure 3D air flow and infrared gas analyser IRGA to measure carbon dioxide. This system is situated at the top of a 20 metre high tower above a forest. Licensing PD self date October 2007 duplicate file info otheraddress Image Eddy Covariance IRGA Sonic.JPG othertext big Summary big This is an open path eddy covariance system, consisting of an ultrasonic anemometer to measure 3D air flow and infrared gas analyser IRGA to measure carbon dioxide. This system is situated at the top of a 20 metre high tower above a forest. big Licensing big Template PD self end duplicate file info template ... more details
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- File:Eddy Covariance Sonic IRGA.jpg
Summary Digital photo taken by me, Veedar, in 2006 of a semi open path eddy covariance system, consisting of an ultrasonic anemometer to measure 3D air flow and infrared gas analyser IRGA to measure carbon dioxide. This system is situated at the top of a 20 metre high tower above a forest. Licensing PD self date December 2006 ... more details
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- Anemostat
Orphan date February 2009 An anemostat is a device used to regulate airflow and pressure in a room or system requiring complex airflow patterns. Anemostat is the trademark name of the Anemostat company, however, the company name has become synonymous with the device. The word is a combination of anemometer and thermostat . Anemostats are used in hospitals to stabilize room conditions, and to prevent the spread of airborne pathogens . In laboratories with fume hoods , anemostats help to ensure adequate conditions for optimum ventilation. Category Medical equipment medical equipment stub pl Anemostat ... more details
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- File:AS-3.jpg
PD self date December 2008 Information Description AS 3 Ultrasonic Anemometer AS 3. It does not contain any mechanical parts because it uses ultrasonic converter to measure air flow speed and direction. It is being used by many coal mines in Poland to monitor air circulation in underground corridors. Source self made, based on photo under permission of its creator Date 22.01.2008 Location Author Mariusz Kurpierz, EMAG Centre Permission Free to use other versions No ... more details
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- Windvane Hill
Orphan date December 2010 Windvane Hill is a small hill just northeast of the extremity of Cape Evans on Ross Island . So named by the British Antarctic Expedition 1910 13 because an anemometer station was established on this site. usgs gazetteer coord 77 38 S 166 24 E display title Category Geography of Antarctica EAntarctica geo stub ... more details
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- File:Prop vane anemometer.jpg
Summary Propeller and Vane anemometer . Cropped version of the following image The top of the Surface Meteorological Observation System SMOS at the Southern Great Plains site. Document Title Surface Meteorological Observation System Southern Great Plains Date of Image Photo May 2003 This image may be reproduced and published at your discretion. Please use the following credit line Courtesy U.S. Department of Energy s Atmospheric Radiation Measurement Program. Source http images.arm.gov armimages.nsf All 5VZ3N5 ARM Image Library Licensing PD USGov DOE needs commons category Category Meteorological instrumentation and equipment ... more details
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- Wind run
Orphan date April 2010 Wind run is a meteorological term used to categorize or determine the total distance or amount of the traveled wind over a period of time. The readings are collected using an anemometer usually part of a weather station . Wind run can help to determine the rate of evaporation of moisture over a particular area. It may also be useful in determining the height of Wave waves that might be encountered on large bodies of water. Longer wind runs generate higher waves on open water. It can also be used to help in the placement of wind turbines . References Reflist Category Wind Category Meteorology DEFAULTSORT Wind Run ... more details
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- Measurement tower
e.g. every ten minutes ref name anemometer loan Cite web url http www.windpoweringamerica.gov anemometer loans.asp title Anemometer Loan Programs publisher Wind Powering America, National Renewable ... more details
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- Anemoscope
An anemoscope is a device invented to show the direction of the wind , or to foretell a change of wind direction or weather. Hygroscopic devices, in particular those utilizing catgut , were considered as very good anemoscopes, seldom failing to foretell the shifting of the wind. The ancient anemoscope seems, by Vitruvius s description of it, to have been intended to show which way the wind actually blew, rather than to foretell into which quarter it would change. Otto von Guericke also gave the title anemoscope to a machine invented by him to foretell the change of the weather, as to fair and rain. It consisted of a little wooden man who rose and fell in a glass tube as the atmospheric pressure increased or decreased. Accordingly, M. Comiers has shown that this was simply an application of the common barometer . This form of the anemoscope was invented by Leonardo Da Vinci . References 1728 See also Anemometer Category Pressure gauges Category Meteorological instrumentation and equipment climate stub it Anemoscopio ... more details
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- Low level windshear alert system
A Low level windshear alert system LLWAS measures wind speed and direction at remote sensor station sites situated around an airport. Each equipped airport may have as few as 6 or as many as 32 remote anemometer stations. The remote sensor data received is transmitted to a master station, which generates warnings when wind shear windshear or microburst conditions are detected. Current wind speed and direction data and warnings are displayed for approach controllers in the Terminal Radar Approach Control Facility TRACON and for ground controllers in the Air Traffic Control Tower ATCT . Air Traffic Controllers ATCs relay the LLWAS runway specific alerts to pilots via voice radio communication. LLWAS alerts assist pilots during critical times when they must determine whether to attempt to land or take off in hazardous weather conditions. Related activities in the United States The original LLWAS system LLWAS I was developed by the Federal Aviation Administration FAA in 1976 in response to the 1975 Eastern Air Lines Flight 66 windshear accident in New York. LLWAS I used a center field anemometer along with five pole mounted anemometers sited around the periphery of the airport. It was installed at 110 FAA towered airports between 1977 and 1987. Windshear was detected used a simple vector difference algorithm, triggering an alarm when the magnitude of the difference vector between the center field anemometer and any of the five remotes exceeded 15 knots. The LLWAS II deployment included software and hardware upgrades to the existing LLWAS I to improve the windshear detection. Between 1988 and 1991, all of the LLWAS I systems were also upgraded to be LLWAS II compliant. The Low Level Windshear Alert System Relocation Sustainment LLWAS RS is intended to upgrade the current LLWAS at 40 LLWAS 2 operating sites and 4 support sites, to extend their service life another 20 years. The LLWAS RS program is divided into two efforts pole relocation and system sustainment. The progra ... more details
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- Timeline of temperature and pressure measurement technology
John Thomas Romney Robinson Cup anemometer . 1848 &mdash William Thomson, 1st Baron Kelvin Lord Kelvin ... more details
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- Climatological observers link
Orphan date September 2008 The Climatological Observers Link COL ref http www.met.rdg.ac.uk brugge col.html The Climatological Observers Link Bot generated title ref was founded in 1970 by a small group of amateur meteorologists following the exchange of correspondence in the magazine http www.rmets.org publication weather index.php Weather published by The Royal Meteorological Society . It is the largest enthusiasts weather observer network within the United Kingdom. The organisation aims to bring together those with an interest in observing the weather, their observations being compiled into monthly bulletins containing news, data and views. Weather knows no boundaries, and neither does the membership of COL. Stations range from those with a single raingauge to full size synoptic and official climatological stations. Many of the stations are equipped with a Stevenson screen and Snowdon Raingauge , while some include Campbell Stokes recorder for measuring sunshine and an Anemometer . Increasingly, members are employing Automatic weather station s. Not only keen to observer the weather, members are keen to share their expertise and information and data is frequently used in school university projects, and by practitioners of the law and forensic science. References reflist Category Weather ... more details
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- Wind power consulting companies
Refimprove date February 2011 Wind Energy Site Assessment Consultants Wind Measurements, Site Assessments, Anemometer Calibration, Remote Wind Sensing, Wind Measurement System Sales Arup AWS Truewind windNavigator, openWind Burns & McDonnell Engineering Hatch Ltd Ingham Consult Mott MacDonald Parsons Brinckerhoff Renewable Energy Systems Western Electricity Coordinating Council Wind Turbines Power Performance Testing Consultants Power Curve Measurements, Vibration Analysis, Measurement of Rotor Blade Angles, Rotor Imbalance Testing Hatch Ltd Wind Turbines Design and Certification Technischer berwachungsverein T V Industry Analysts BTM Consult IHS Inc. Emerging Energy Research Consultants Acting as Owner s Engineer for Wind Farm Projects Black & Veatch Hatch Ltd Ingham Consult Mott MacDonald Offshore Marine Management Parsons Brinckerhoff Tetra Tech See also Wind power industry http www.windturbines.net directory?catid 5 Directory of Wind Turbine Consultants in the USA Wind power Category Wind power ... more details
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- Aerographer's Mate
Infobox Military rating name Aerographer s Mate image File Rating Badge AG.jpg 150px caption insignia type Enlisted Rating issued by United States Navy abbreviation AG specialty Aviation File US Navy 060508 N 0933M 001 Aerographer s Mate 3rd Class Arthur Bourke measures wind speed and direction with a handheld anemometer on the island aboard the Nimitz class aircraft carrier USS Dwight D. Eisenhower CVN 69 .jpg thumb An Aerographer s Mate 3rd Class uses a handheld anemometer to measure wind speed and direction aboard the aircraft carrier USS Dwight D. Eisenhower CVN 69 Aerographer s Mate abbreviated as AG is a United States Navy occupational Naval rating rating . Duties Aerographer s Mates observe, collect, record and analyze meteorological and oceanographic data make visual and instrument observations of weather and sea conditions operate meteorological satellite receivers and interpret and apply satellite data interpret and brief radar imagery and data interpret meteorological and oceanographic codes verify meteorological and oceanographic products evaluate recent meteorological and oceanographic developments for integration into local routines and enter data on appropriate Nautical chart charts operate Ancillary data ancillary equipment for the processing, dissemination and display of environmental data perform preventive maintenance on meteorological and oceanographic equipment prepare Severe weather terminology United States warnings of severe and hazardous weather and sea conditions forecast meteorological and oceanographic conditions and prepare and present briefings concerning current and predicted environmental conditions and their effect on operations. ref name HIST cite web title Navy enlisted manpower and personnel classifications work Bureau of Naval Personnel publisher US Navy url http buperscd.technology.navy.mil bup updt 508 OccStandards OccStd Menu.htm accessdate 2007 01 11 ref Training AG A and C Schools are currently located in Biloxi, Mississippi ... more details
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- Wind speed
26 ref The wind gust was evaluated by the WMO Evaluation Panel who found that the anemometer was mechanically .... The anemometer was mounted 10 m above ground level and so 64 m above sea level. ref name Arizona ... April 1934, using a anemometer heated anemometer . The anemometer, specifically designed for use ... more details
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- FluxNet
Covariance IRGA Sonic.jpg thumb right Anemometer Sonic anemometers Sonic anemometer and Infrared gas .... To obtain the necessary data , it is common for the towers to employ a anemometer Sonic anemomters sonic anemometer , an infrared gas analyzer and some sensor to hygrometer measure humidity ... can be represented by a 3D Euclidean vector vector . The purpose of using such a precise anemometer ... long term changes in trace gas flux within the atmosphere. main Anemometer Sonic anemometers Many different forms of anemometer exist on the current market. Unfortunately, the majority of the anemometers ... , the sonic anemometer can measure the total air speed as well as its direction. ref US patent 4031756 ... within half a meter of the anemometer while closed sensors use a collection tube mounted inside the anemometer to get their air sample. ref name Baldocchi2001 main Hygrometer The hygrogemeter is an essential ... more details
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- Windsock
distinguish Winsock Image Anemoscopi.JPG thumb right 250px Windsock A windsock is a Cone geometry conical textile tubing material tube designed to indicate wind direction and relative wind speed . Windsocks typically are used at airport s and at chemical plant s where there is risk of gas eous leak age. They are sometimes located alongside highway s at windy locations. Wind direction is the opposite of the direction in which the windsock is pointing note that wind directions are conventionally specified as being the compass point from which the wind originates so a windsock pointing due north indicates a south erly wind . Windspeed is indicated by the windsock s angle relative to the mounting Flagpole structure pole in low winds, the windsock droops in high winds it flies Horizontal plane horizontal ly. Per Federal Aviation Administration FAA standards referenced below, a convert 15 kn sing on wind will fully extend the properly functioning windsock. A convert 3 kn sing on wind breeze will cause the properly functioning windsock to orient itself according to the wind. At many airport s, windsocks are lighted at night , either by flood light s on top surrounding it or with one mounted on the pole shining inside it. See also Anemometer a device for measuring wind speed Weather vane a device for indicating wind direction Air sock Koinobori Japanese decorative carp shaped windsocks External links Commons category Windsocks http www.faa.gov airports resources advisory circulars media 150 5345 27D 150 5345 27d.pdf FAA Specification for Wind Cone Assemblies FAA Advisory Circular 150 5345 27D PDF 447KB Meteorological equipment Category Meteorological instrumentation and equipment Aviation stub Climate stub ca Anemoscopi cs V trn ruk v da Vindpose de Windsack el es Manga de viento eo Ventosako fa fr Manche air ko it Manica a vento ln Sos ti ya Mop p nl Windzak ja no Vindp lse pl R kaw wska nik wiatru pt Biruta ru fi Tuulipussi ... more details
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- Earth observation
Unreferenced stub auto yes date December 2009 Earth observation is the gathering of information about planet Earth s physical, chemical and biological systems. It is used to monitor and assess the status of, and changes in, the natural environment and the built environment . In recent years, Earth observation has become technologically more and more sophisticated. It has also become more important due to the dramatic impact that modern human civilization is having on the Earth, the need to minimize the negative impacts, and the opportunities Earth observation provides to improve social and economic well being. Earth observations can include a birdwatching birdwatcher s notes on bird sightings br numerical measurements taken by a thermometer , anemometer wind gauge , ocean buoy , altimeter or seismometer br photos and radar or sonar images taken from ground or ocean based instruments br photos and radar images taken from remote sensing satellites br decision support tools based on processed information, such as maps and models Just as Earth observations consist of a wide variety of possible elements, they can be applied to a wide variety of possible uses. Some of the specific applications of Earth observations include weather forecasting forecasting weather br tracking biodiversity and wildlife trends br measuring land use change such as deforestation br monitoring and responding to natural disaster s, including fires, flood s, earthquake s and tsunami s br managing natural resource s, such as energy , freshwater and agriculture br addressing emerging diseases and other health risks br predicting, adapting to and mitigating climate change The quality and quantity of Earth observations continue to mount rapidly. In addition to the ongoing launch of new remote sensing satellites, increasingly sophisticated in situ instruments located on the ground, on balloons and airplanes, and in rivers, lakes and oceans, are generating increasingly comprehensive, near real time obse ... more details
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- Roshko number
In fluid mechanics , the Roshko number is a dimensionless number describing oscillating flow mechanisms. It is named after the American Professor of Aeronautics Anatol Roshko . It is defined as math mathit Ro St Re f L 2 over nu math where Ro is the dimensionless Roshko number, St is the dimensionless Strouhal number , Re is the Reynolds number , f is the frequency of vortex vortex shedding shedding , L is the characteristic length for example hydraulic diameter and is the kinematic viscosity of the fluid. References cite journal last Olim first A. M. last2 Riethmuller first2 M. L. last3 Gameiro da Silva first3 M. C. year 2002 title Flowfield characterisation in the wake of a low velocity heated sphere anemometer journal Experiments in Fluids Exp. Fluids volume 32 issue 6 pages 645 651 doi 10.1007 s00348 001 0403 6 cite journal last Ormieres first D. last2 Provansal first2 M. year 1999 title Transition to turbulence in the wake of a sphere journal Physical Review Letters Phys. Rev. Lett. volume 83 issue 1 pages 80 83 doi 10.1103 PhysRevLett.83.80 External links http etd.caltech.edu etd available etd 10302003 144124 On the Development of Turbulent Wakes From Vortex Streets PhD. Thesis by Anatol Roshko hosted on Caltech Site . NonDimFluMech Category Dimensionless numbers Category Fluid mechanics pt N mero de Roshko ru ... more details
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