32 Air Monitoring - focus on Weather & Climate Monitoring Cost eff ective and longer lasting wind sensing technology
Over 20 years, LCJ Capteurs has been designing and manufacturing ultrasonic wind vane - anemometers. As the forerunners of the ultrasonic wind sensor in the marine sector, this French company offers products that are very good value for money with self-suffi cient energy thanks to its wireless capability. The product range has been improved and enhanced to offer the best and most effi cient compact, robust and lightweight wind sensors. These are designed and manufactured in LCJ’s workshop, but also tested in wind tunnel, climatic chamber and ageing bench. Every test is recorded against the unit’s serial number to ensure reliability, accuracy and robustness.
Thanks to ultrasonic technology, there are no rotating parts on the LCJ Capteurs’ products. This is why these sensors have a much longer life span than conventional wind vane anemometers. Three types of terrestrial sensors are available: NMEA 0183, Modbus – analogue, ultra-low/zero-power. Sensors already mounted on vertical poles (external power supply or self-powered) or OEM solutions to incorporate into bespoke systems are available, as well as tailor-made fi nished products. These solutions are compatible with all interfaces used on weather stations.
The LCJ Capteurs’ ultrasonic wind sensors are supplied to weather station integrators, connected agriculture systems, smart buildings, the sports sector, pollution detection systems and various other domains. As the company continues to grow, extension works on their headquarters have been carried out in order to increase the production and storage capacity to meet the steady increase in demand.
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52751pr@reply-direct.com WMO Executive Council gives green light to early warning and greenhouse gas initiatives
The World Meteorological Organization’s Executive Council has given the green light to two major strategic proposals to ensure that early warning services reach everyone in the next fi ve years and to establish a greenhouse gas monitoring system. The decisions were part of a series of measures agreed by the Executive Council at its June 20-24 session to strengthen weather, climate, water and environmental services to meet the growing needs of society.
“These fl agship initiatives will strengthen WMO’s commitment to the international agenda on climate action and disaster risk reduction and will play a pivotal role in informing climate change mitigation and adaptation to increasingly extreme weather,” said WMO Secretary-General Prof. Petteri Taalas. “Record greenhouse gas concentrations are driving the increase in temperatures and more extreme weather. Early warning services are a vital, cost-effective and proven way of protecting lives and livelihoods. They are thus the “low-hanging fruit” of climate change adaptation,” said Prof. Taalas.
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“There is a real and proven need for a coordinated global greenhouse gas monitoring infrastructure which will provide a solid, authoritative basis for governments to monitor the effectiveness of their action to reduce greenhouse gas emissions to meet the targets of the Paris Agreement. Mitigation action – curbing emissions due to human activities - is urgently needed, but these decisions will need to be supported by solid data,” said Prof. Taalas.
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58368pr@reply-direct.com Rain and precipitation measurement made
easy, wherever and whenever its needed The RHD sensor from Sommer Messtechnik is a competitively priced, high precision, ultra-robust rain gauge instrument. It is a very low-power, maintenance-free and totally sealed acoustic instrument with no mobile parts. The sensing part of the instrument is a polished stainless-steel hemisphere supported by a strong stainless-steel arm.
Impact of raindrops or hailstones induces change in internal acoustic pressure. In addition to the rain intensity data, the distrometer function also provides information about the drop size distribution. If you need a solution for remote or tough to access areas and you do not have the manpower for regular checking/maintenance of your rain gauge then this is the perfect choice of sensor. It is also available as a “plug and play” station which includes data storage, data processing installation tools and enough power solution to be an autonomous station.
The instrument includes a dedicated analogue conditioning module, a digital I/O module and an analogue restitution
module. It can therefore be connected to, or communicate conveniently with, almost any external analogue or digital central unit (data logger, industrial module interface, instrumentation DAQ, USB port). It features continuous or pulse analogue voltage outputs and supports SDI-12 communication, serial RS-232, and Modbus RTU RS485 (using an optional adapter).
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Usually, high nitrous oxide emissions occur from agricultural soils, where the availability of mineral nitrogen is high because of nitrogen fertilisation and other management practices. Since the nitrogen cycling in cold Arctic soils is slow, they have previously been regarded as unimportant nitrous oxide sources. Based on accumulating evidence during the past years, however, this is not always true: nitrous oxide release has been found to be a common phenomenon in permafrost-affected soils, and the emissions increase with warming, disturbed vegetation cover and permafrost thaw.
“The nitrogen release from thawing permafrost can substantially improve the availability of nitrogen in Arctic ecosystems, which, in addition to the direct climatic feedback in the form of nitrous oxide, may have important consequences on carbon fi xation by plants and eutrophication of water systems,” says Postdoctoral Researcher Maija Marushchak from the University of Eastern Finland, the lead author of the study.
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IET ANNUAL BUYERS’ GUIDE 2022/23
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Novel source of the strong greenhouse gas nitrous oxide found in Siberian permafrost
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