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Satellite Signals from Space: Smart Science for Understanding Weather and Climate
Want to know about COSMIC, and how satellite signals can provide information about Earth's atmosphere? This video provides anyone interested in the topic with a brief overview of the Constellation Observing System for Meteorology, Ionosphere, and Climate, called COSMIC. Targeted to students and teachers in Grades 5-9 but accessible to anyone, the video introduces the latest COSMIC mission (COSMIC-2), which uses satellites orbiting near Earth to measure how the atmosphere affects signals from global positioning system (GPS) satellites high above the surface. This technique is called radio occul ...
IOM Report, 128. Interlaboratory Comparison in the field of Temperature, Humidity and Pressure, in the WMO Regional Association VI (MM-ILC-2015-THP)
The subject of this report is evaluation of the interlaboratory comparison in the field of measurement of temperature, humidity and pressure. The interlaboratory comparison was held within the framework of the MeteoMet 2 project, in the scope of proficiency testing scheme organized by the University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Metrology and Quality (UL-FE/LMK), except pressure part. All the analysis were done in accordance with accredited procedures.
Instrumentation and Measurement of Atmospheric Humidity
This lesson provides an overview of the science and techniques related to measuring humidity, or the amount of water vapor, in Earth's atmosphere. After beginning with a review of the units used for humidity, the learner will examine the three main types of hygrometers (material, thermodynamic, and optical) and explore instruments within each of these categories. The lesson provides information about the advantages and limitations of various humidity instruments. The effects of siting, sheltering, and ventilation on humidity measurements are also addressed. The lesson is part of the Instrument ...
IOM Report, 121. Measurement of upper-air pressure, temperature and humidity
This report is that document, as authored by Dr Nash, in all its original detail. Starting with the existing version of the CIMO Guide (2010 update) Dr Nash revised that information, primarily to include the additional understanding gained from the Yangjiang intercomparison. At the same time, though, he added a wealth of further specialist knowledge, gained from his protracted involvement in WMO CIMO activities over more than thirty years, and in particular from his participation in all eight CIMO international radiosonde intercomparisons, commencing with the first, held at Bracknell in 1983.< ...
IOM Report, 106. WMO Field Intercomparison of Thermometer Screens/Shields and Humidity Measuring Instruments : Ghardaïa, Algeria, November 2008 – October 2009
The WMO Combined Intercomparison of Temperature Screens/Shields in Conjunction with Humidity Measuring Instruments was carried out in Ghardaïa, Algeria from November 2008 to October 2009, at the kind invitation of the Algerian Meteorological Service and under the leadership of CIMO. This intercomparison allowed testing the performance of the instruments in desert conditions, in a dry, hot and dusty environment. It was planned to carry out a follow-up intercomparison of similar instruments in an arctic environment at a later stage. The main objectives of this intercomparison were to gain knowle ...
CAWCR Technical Reports, 24. A high-quality historical humidity database for Australia
Lucas Chris; Centre for Australian Weather and Climate Research - Centre for Australian Weather and Climate Research, 2010
S-290 Unit 5: Temperature and Relative Humidity Relationships
“S-290 Unit 5: Temperature and Relative Humidity Relationships” module focuses on methods of describing humidity in the atmosphere and how temperature changes can affect relative humidity. Topics from this module will be further related to effects on potential fire behavior in other modules of the Intermediate Wildland Fire Behavior Course.
IOM Report, 85. TWMO Radiosonde Humidity Sensor Intercomparison: final report of Phase I and Phase II
World Meteorological Organization (WMO) ; Kats A.; Krestyannikova N.; et al. - WMO, 2006 (WMO/TD-No. 1305)PHASE I: Laboratory Test
- Central Aerological Observatory (Dolgoprudny, Russian Federation, June 1995 - June 1997): A. Balagurov, A. Kats, N. Krestyannikova (Russian Federation)
PHASE II: Field Test
- NASA Wallops Flight Facility (Virginia, United States, 8 - 26 September 1995): F. Schmidlin (United States)
Measurement of temperature and humidity : specification, construction, properties and use of the WMO reference psychrometer
World Meteorological Organization (WMO) ; Lalas Theo; Commonwealth Scientific and Industrial Research Organisation (CSIRO) - WMO, 1992 (WMO-No. 759)This publication serves as a specification for the design and construction of the WMO Reference Psychrometer. It describes how it must be operated in the laboratory and in the field to obtain measurements of air temperature and humidity with very high accuracy. A set of working drawings is included.
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