The identification of atmospheric CO2 observation data which are minimally influenced by very local emissions/removals is essential for trend analysis, for the estimation of regional sources and sinks, and for the modeling of long-range transport of CO2. In this study, four approaches are used to filter the atmospheric CO2 observation records from 2009 to 2011 at one World Meteorological Organi...

Much has been made of the idea of consensus in the development of the IPCC's role since it was set up in 1988 by WMO, the World Meteorological Oganisation, and UNEP, the United Nations Environment Progamme. The IPCC's scientific assessment involves studying the output from various climate models as well as various historical records of atmospheric and marine data. It is well known that the chao...

With the purpose of revising World Meteorological Organization's Commission for Instruments and Methods Observation (WMO/CIMO) Guide #8 on weather stations siting, an experiment to evaluate metrologically maximum influence a paved road 2-m air temperature measurements (“road siting effect”) has been designed, installed run in Italy. It consists 100-m long array seven measurement stations, at in...

As power systems are operated closer to their technical limits, dynamic thermal line rating (DLR) can be used to enable additional dispatching flexibility. DLR is used to dynamically adapt the ampacity of the conductors, i.e. the maximum allowed amount of current a conductor can carry without overheating, according to the meteorological conditions. This paper proposes a probabilistic N-1 securi...

Abstract. The measurement of precipitation in the Environment and Climate Change Canada (ECCC) surface network is a crucial component for climate weather monitoring, flood water resource forecasting, numerical prediction, many other applications that impact health safety Canadians. Through late 1990s early 2000s, ECCC modernization resulted shift from manual to automated measurements. Although ...

Mast seeding, the extremely variable and synchronized production of fruits, is a common reproductive behavior in plants. Weather is centrally involved in driving masting. Yet, it is often claimed that it cannot be the sole proximate cause of masting because weather is less variable than fruit production and because the shape of their distributions differ. We used computer simulations to demonst...

Abstract. We assess the performance of an isotope ratio infrared spectrometer (IRIS) to measure carbon (δ13C) and oxygen (δ18O) ratios in atmospheric dioxide (CO2) report observations from a 26 d field deployment trial at Baring Head, New Zealand, NIWA's observatory for Southern Ocean baseline air. Our study describes operational method improve comparison previous publications on this analytica...

Extreme fire-weather conditions are usually thought of as discrete events rather than part of a continuum of meteorological and climatological variability. This study uses a synoptic climatological approach (weather typing) to examine the seasonal climatology of extreme fire-weather conditions across the southwest United States (Arizona and New Mexico) during the period of 1988–2003. Three key ...

Abstract As climate change accelerates, societies and climate-sensitive socioeconomic sectors cannot continue to rely on the past as a guide possible future hazards. Operational decadal predictions offer potential inform current adaptation increase resilience by filling important gap between seasonal forecasts projections. The World Meteorological Organization (WMO) has recognized this in 2017 ...

PURPOSE The objective of this study was to evaluate the effect of meteorological factors on the onset of idiopathic sudden sensorineural hearing loss (ISSHL). MATERIALS AND METHODS Meteorological data from 2005 to 2011 were obtained from the web-based "Monthly Weather Reports of the Meteorological Administration" database. Patients with ISSHL who visited our hospital during this same period a...