Agriculture is the largest employer in the world and is probably the most dependent on the climate of all human activities. In recent years there have been events that have put in evidence the vulnerability of global food security to major meteorological phenomena, both in global agricultural markets and the world economy. The food price crisis and the subsequent economic crisis reduced the purchasing power of large segments of the population in many developing countries, which seriously reduced their access to food and thus undermined their food security. During the years 2009 and 2010 in Ven ...RussianPublished by: Министерство Образования и Науки Российской Федерации ; 2018
Agriculture is the largest employer in the world and is probably the most dependent on the climate of all human activities. In recent years there have been events that have put in evidence the vulnerability of global food security to major meteorological phenomena, both in global agricultural markets and the world economy. The food price crisis and the subsequent economic crisis reduced the purchasing power of large segments of the population in many developing countries, which seriously reduced their access to food and thus undermined their food security. During the years 2009 and 2010 in Venezuela there were strong weather anomalies, drought in the first case and the second extreme rains, caused mainly by the effect of the El Niño-Southern Oscillation (ENSO) event, with warm phase (El Niño) in 2009 and cold phase (La Niña) in 2010, affecting farming, mostly in Monagas, Anzoátegui and Guárico States negatively influencing its economy. The planning of agricultural production based on the use of agricultural information, as calendars of sowing, as well as the monitoring of the conditions during the crop cycle and the use of agrometeorological forecasting, then is of great importance for the development of the agricultural sector, because it minimizes the effects on food production which might be affected by climate variability, making it less vulnerable. Model results confirm the importance of known key physiological processes, such as the shortening of the time to maturity of a crop with increasing mean temperature, decline in grain set when high temperatures occur during flowering, and increased water stress at high temperatures throughout the growing cycle. Temperature responses are generally well understood for temperatures up to the optimum temperature for crop development. The impacts of prolonged periods of temperatures beyond the optimum for development are not as well understood. For this study the agro meteorological stations selected have daily records of all climatic elements, so it held a summary monthly apart from daily data (with prior quality control) for the accumulated monthly rainfall and temperature maximum and minimum for the 1971-2010 series. Therefore, Inter decadal rainfall and temperature analysis and the use of the cropwat 8.0 to model future scenarios can be estimated water requirements of main crops, allowing some adaptation measures to help mitigate the effects of climate change in the country's agricultural production. In selected stations were determined significant changes on ETc when the temperature increase and the availability of water is a key factor to reach the harvest. Adaptation measurements involve reducing risk and vulnerability; for developing countries rely heavily on climate-dependent agriculture and especially in conjunction with poverty and rapid increase in population they are vulnerable to climate change.
Notes: If you wish to download the full text, please contact the author (leilacudemus(at)hotmail.com) or library(at)wmo.int (Please replace (at) by @).
Format: Digital (Free)EnglishPublished by: WMO ; 2018
Collection(s) and Series: Technical document
Format: Digital (Free)Cette vidéo éducative décrit l'approche de mise en oeuvre des séminaires itinérants. Organisés dans le cadre du projet METAGRI, les séminaires itinérants visent à renforcer la résilience des producteurs ruraux face au changement climatique.FrenchPublished by: OMM ; 2018
Bien préparer et conduire un séminaire itinérant sur le temps et le climat: modules de formation à l'intention des producteurs et productrices ruraux et des techniciens de développement
Cette vidéo éducative décrit l'approche de mise en oeuvre des séminaires itinérants. Organisés dans le cadre du projet METAGRI, les séminaires itinérants visent à renforcer la résilience des producteurs ruraux face au changement climatique.
Notes: Avec le soutien du gouvernement norvégien.
Format: Digital (Free)This educational video describes the approach to implementing rovin seminars. Organized as part of the METAGRI project, roving seminars aim to increase the resilience of rural producers to climate change.EnglishPublished by: WMO ; 2018
How to Conduct a Roving Seminar on weather and climate: training modules for rural producers and development technicians
This educational video describes the approach to implementing rovin seminars. Organized as part of the METAGRI project, roving seminars aim to increase the resilience of rural producers to climate change.
Notes: With the support of the Norwegian Government.
Format: Digital (Free)EnglishPublished by: 월 이화여자대학교 대학원 기후·에너지시스템공학과 ; 2017
Improving the Quantitative Precipitation Forecast (QPF) over Ghana using WRF Interfaced with Genetic Algorithm
Notes: If you wish to download the full text, please contact library(at)wmo.int (Please replace (at) by @).
Format: Digital (Available online for logged in users)EnglishPermalinkRainfall is a very important weather and climate parameter that affects social and economic activities in Djibouti. This leads to droughts, floods and humanitarian disasters over the country. The rainfall climatology of the country has some changes which need to be taken into account while planning for economic activities such as civil and structural engineering. The whole country receives significant rains in the months of (October – December) and (March – April) as known except for the southern parts of the country. The southern part of the country gets its rains in the months of (June to Au ...EnglishPermalinkFloods and droughts are one of extreme weather climatic events that result in loss of life and property in Malawi. However, a well detailed knowledge of understanding of previous extreme climatic events and their associated impacts can be a precautionary in reducing their impacts, as it will help to project future events timely. Therefore this paper presents an analysis of Dec-Feb seasonal flood/drought events and their associated circulation anomalies over Malawi. The DJF seasonal flood/drought was studied using monthly data from 9 selected stations for the period of 1978-2010. A set of regio ...EnglishPermalinkClimate is one of the key factors that affect agriculture. Climate change and climate variability have been observed, typically shown as global warming due to the increased greenhouse gases. The change in climate is even predicted to be rapped and sharp in recent future and the impacts of extreme climate condition associated with climate change will be high on agriculture. Studying the impacts of climate change, especially the effects of temperature and precipitation on agriculture, is important for food safety, agricultural management, and sustainable development.EnglishPermalinkEnglishPermalinkTo apprehend the temporal and spatial distribution of the rainfall over CAR, we computed thirty-three years (1981-2013) of monthly rainfall, relative humidity over the country divided into four (4) distinct sub-regions. Bearing different characteristics one to another, we found that Region 2 and Region 4 were having a statistical significant upward trend along the long term rainfall variation; meanwhile Region 3 was the one having a highest coefficient of variation on the yearly basis. The composite analysis showed that December, January and February were the months with higher frequency of va ...EnglishPermalinkThe rainy season in Sierra Leone is unimodal from April to October; an understanding of the inter-annual variability of rainfall in Sierra Leone is of importance to economic sectors such as fisheries, agriculture, infrastructure, hydro-electric power generation (HEP) and water resources. This study investigated the variation of the intra-seasonal rainfall characteristics in Sierra Leone. Daily rainfall data from 4 synoptic stations was obtained from the Sierra Leone Meteorological Department from 1990-2014.EnglishPermalinkA Regional Climate Outlook Forum is a platform that brings together climate experts and sector representatives from countries in a climatologically homogenous region to provide consensus based climate prediction and information, with input from global and regional producing centres and National Meteorological and Hydrological Services, with the aim of gaining substantial socio-economic benefits in climate sensitive sectors.EnglishPermalinkWhile drought conditions are generally a common and recurring phenomenon of the climate in Southern Africa especially Lesotho, the frequency of droughts in Lesotho has increased significantly over the past few years. Lesotho has suffered the devastating impacts of drought during the past several decades resulting in poor harvests and large livestock losses to rural farmers. The majority of the population in Lesotho engages with rain- fed agriculture and is dependent to some degree on own production for household food supply and/or cash income (Dejene, Midgley, & Marake, 2011). Any negative cha ...EnglishPermalinkThis study attempted to investigate the variability of extreme rainfall and temperature over Rwanda and the associated circulation anomalies forecasting on wet and dry rainfall events between 1961 and 2010. The datasets used to achieve the objectives includes Temperature, the rainfall dataset, wind vector, pressure vertical velocity (omega) and the Indian Ocean sea surface temperature (SST). The methods used include correlation analysis, Standardized anomaly, composite analysis, and Empirical Orthogonal Functions (EOF) analysis. The results show that the mean annual cycle depict two rainy Seas ...EnglishPermalink