scholarly journals WMO’s programme on tropical cyclone

MAUSAM ◽  
2021 ◽  
Vol 48 (2) ◽  
pp. 103-112
Author(s):  
G. O. P. OBASI
Keyword(s):  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Regional Cooperation ◽  
Disaster Prevention ◽  
Significant Progress ◽  
The World ◽  
The Many ◽  
Operational Issues

ABSTRACT. The Tropical Cyclone Programmes of WMO was established to assist the many affected countries of the world in mitigating the impacts of tropical cyclones, through the development of their capabilities in monitoring, forecasting and disaster prevention and preparedness. The paper discusses the factors which have together led to significant progress in this regard. These include the organization and structure of the Programme, the systems and technologies in place, and the mechanisms for training and regional cooperation among the countries of the tropical cyclone basins. Specific tropical cyclone research and operational issues of concern are also presented.      

scholarly journals Machine Learning in Tropical Cyclone Forecast Modeling: A Review

Atmosphere ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 676
Author(s):  
Rui Chen ◽  
Weimin Zhang ◽  
Xiang Wang
Keyword(s):  
Machine Learning ◽  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Numerical Models ◽  
Weather Forecasts ◽  
Dynamic Mechanisms ◽  
Forecast Models ◽  
Strong Winds ◽  
The Many ◽  
Axisymmetric Structures

Tropical cyclones have always been a concern of meteorologists, and there are many studies regarding the axisymmetric structures, dynamic mechanisms, and forecasting techniques from the past 100 years. This research demonstrates the ongoing progress as well as the many remaining problems. Machine learning, as a means of artificial intelligence, has been certified by many researchers as being able to provide a new way to solve the bottlenecks of tropical cyclone forecasts, whether using a pure data-driven model or improving numerical models by incorporating machine learning. Through summarizing and analyzing the challenges of tropical cyclone forecasts in recent years and successful cases of machine learning methods in these aspects, this review introduces progress based on machine learning in genesis forecasts, track forecasts, intensity forecasts, extreme weather forecasts associated with tropical cyclones (such as strong winds and rainstorms, and their disastrous impacts), and storm surge forecasts, as well as in improving numerical forecast models. All of these can be regarded as both an opportunity and a challenge. The opportunity is that at present, the potential of machine learning has not been completely exploited, and a large amount of multi-source data have also not been fully utilized to improve the accuracy of tropical cyclone forecasting. The challenge is that the predictable period and stability of tropical cyclone prediction can be difficult to guarantee, because tropical cyclones are different from normal weather phenomena and oceanographic processes and they have complex dynamic mechanisms and are easily influenced by many factors.

AN AUTOMATIC SATELLITE INTERPRETATION OF TROPICAL CYCLONE PATTERNS USING ELASTIC GRAPH DYNAMIC LINK MODEL

1999 ◽  
Vol 13 (08) ◽  
pp. 1251-1270 ◽  
Author(s):  
RAYMOND S. T. LEE ◽  
JAMES N. K. LIU
Keyword(s):  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Active Contour Model ◽  
Weather Patterns ◽  
The World ◽  
Interpretation Process ◽  
Link Model ◽  
Matching Techniques ◽  
Dynamic Link

In the past decades, satellite interpretation was one of the vital methods for the determination of weather patterns all over the world, especially for the identification of severe weather patterns such as tropical cyclones (TC). The method is based on Dvorak Technique8 which provides a means of the identification of the cyclone and its intensity. This is a kind of pattern-matching techniques and is based on some well-known TC templates for reference. Due to the high variation and complexity of cloud activities for the tropical cyclone patterns, meteorological analysts all over the world so far are still relying on subjective human justification for TC identification purposes. In this paper, an Elastic Graph Dynamic Link Model (EGDLM) is proposed to automate the satellite interpretation process and provides an objective analysis for tropical cyclones. The method integrates Dynamic Link Architecture (DLA) for neural dynamics and Active Contour Model (ACM) for contour extraction of TC patterns. Over 120 satellite pictures provided by National Oceanic and Atmospheric Administration (NOAA) were used to evaluate the system, and 145 tropical cyclone cases that appeared in the period between 1990 to 1998 were extracted for the study. An overall correct rate for TC classification was found to be above 95%. For hurricanes with distinct "eye" formation, the model reported a deviation within 3 km from the "actual eye" location, which was obtained from the reconnaissance aircraft measurements of minimum surface pressure.

scholarly journals Comparative analysis of subjective/advanced objective technique of tropical cyclone intensity estimation

MAUSAM ◽  
2021 ◽  
Vol 57 (1) ◽  
pp. 159-164
Author(s):  
B. R. LOE ◽  
R. K. GIRI ◽  
B. L. VERMA ◽  
S. BALI ◽  
SOMA SEN ROY
Keyword(s):  
Comparative Analysis ◽  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Tropical Cyclone Intensity ◽  
Intensity Estimation ◽  
Cyclone Intensity ◽  
Subjective Judgement ◽  
The World ◽  
Computer Based ◽  
Image Pattern

lkj & m".kdfVca/kh; pØokr dh rhozrk dk vkdyu djus ds fy, lewps fo’o esa O;kogkfjd :i ls mi;ksx dh tkus okyh M~oksjd rduhd esa mixzg ls izkIr fp=ksa dk mi;ksx fd;k tkrk gSA blesa O;ofLFkr laogu ds laca/k esa fo’ys"kd }kjk fd, x, foospu lfgr dqN izk;ksfxd ekunaMksa ds vk/kkj ij mixzg ls izkIr fp= ds iSVuZ dh igpku dh tkrh gSA fofHkUu fo’ys"k.k dsUnzksa }kjk fdlh ,d pØokr dk vkdyu djus esa gksus okyh fo"k;ijd foospu laca/kh folaxfr;k¡ daI;wVj ij vk/kkfjr ,yxksfjFe ds ek/;e ls de gqbZA bl la’kksf/kr rduhd dks fodflr fo"k;ijd M~oksjd rduhd ¼,- vks- Mh- Vh-½ dgk x;k vkSj ;g iw.kZ fodflr m".k dfVca/kh; pØokrksa ds fy, mi;qDr gSA bl 'kks/k&Ik= esa o"kZ 2004 esa vk, rhu m".kdfVca/kh; pØokrksa ds laca/k esa ,- vks- Mh- Vh- ds dk;Z & fu"iknu dk ewY;kdau fd;k x;k gSA buds rqYukRed fo’ys"k.k ls ;g irk pyk fd ,- vks- Mh- Vh- rduhd M~oksjd rduhd ds vk/kkj ij fd, x, pØokr dh rhozrk ds vkdyuksa] tks m".kdfVca/kh; fo’ys"k.k dsUnzksa ds mixzg ls izkIr fp=ksa ds fo’ys"kdksa }kjk O;kogkfjd :Ik ls rS;kj fd, x,] ds  eqdkcys dh jghA  Dvorak technique operationally used all over the world for estimating the tropical cyclone intensity is based on satellite observations. It involves image pattern recognition based on certain empirical rules along with the analyst interpretation of organized convection.  The computer-based algorithm can minimize these subjective judgement discrepancies between different analysis centers estimating the same storm.  This modified version is called Advanced Objective Dvorak Technique (AODT) and which is applicable for well-developed tropical cyclones. In this paper the performance of the AODT is evaluated on three cases of the year 2004 tropical cyclones. Comparative analysis indicates the technique to be competitive with, the Dvorak-based intensity estimates produced operationally by satellite analysts from tropical analysis centers.

Jeu as nte -A A u fr g ic uasnt. T lo h w ese in tropospheric jetstr ea le mvc el l , u de antdhew su e b st t ro A pi f c ri aclan ea st m er ildy -, deve s. These fast-moving upper pre Spoa lo re pdendes th srpoou li gch ie s s . ound early warning and disaster ltehveeltw ra inn cieties in sdpsoh rt avoeffamr-o re is atcuhrien , g m im opmaecn ts tuwm it , hproelslpuetcatnttso , reeflfyorh ts e , a w vi h ly icohndp ev o e st l -o dpiisnagstceorurnetlr ie ie fsa , ned sp reech ia alb ly ilA ita fr tiicoan , a an tm dop sp es htesr , ic to dgyentahm er ic w s. ith many other aspects of the tdo is atshtee rs s . evIen re imm ake them m creas peadc ts vuo ln fed ra ro o u re ghatn bility doafnmdsooo re th vulnerable Tropical cyclones have both direct and indirect severe consequences of natural disasters c iet eyrn to a tu t r led to th haeliam ss poacc ia ts t ed onwK ith entyhaensrtarionn fa gll. w T in hdes , doic re ecatniwmapvaecst , saanrdefdoerc la N ra attiuornalofDtihsea st 1e9r90Rseadsuc th ti eon In t ( eIrD na N ti D on R a ) l D by e ca th deeaen xc yescsyicvleonperew cip e ith it iant io th netw ha etstoec rn cu Irnw di haennO th ceeaenffeex ct tsenodfpUrnoim te odteNdaitsiaosn te s. rpTrheevemna ti joonraonbd je cptrievpearoefdInD es NsD th R ro iusgthocolv im er atK ol eongyiac . a l It sh hit the Keny arneccoorod uld be as s t . shTohwen th o a ted ind tino th cayt rect ecflto he fe nce ts ahvaaosileafavbe le rcdo ev n e ce ny dama lo rgp te e, in dgc in otuen rn tr aiteiso , ntaol re adcu ti coen , l os esspo ecially in the cyclone, however, occur when the cyclone is far from often as so acnid at esdocw io it ehconnaotm ur iacld di issa ru st petrisofn li , few , hpircohpea rt ryet it hserceegn io tr n e , butthsetrie ll bayt tra in cttesrtfhee ri n re g g io wniatlh wi tnhdes to n w or a m rd aslh at etlip tu tdoess hi tfhtattheap re o st p -d re is vaaslteenrt re iln ie f and . r T eh haeb se il it cao ti uolnd circ Culloas ti e on patterns of the many developing general ciin rc te urlaac ti t o io nnsohvaevrerbeegeinonoabl winds. the regi soenrvaendd between the cou A n tr n ies the extra-includin egw . th d e im feuntsuiroen re to cu rnraetnucrealocflidm ro at uegh variability, tsryosp te ic masl , wmeiadtlhaetr it u sy dsetewmesstle ik r e li etsh , e N fr oorn th ta lAatn la dntb ic lo coksicn il g ­ tchuerrternatdigtlioobnaallcsopn ac cee -r t n im aebopuattttehrenspootfengtlioablacths, a n is geth in e T la e ti l climate, Ke l o ec n o , nenae st Atlantic pat nyan rai cntfiaolnlsanhdavEeNaSltseor ns b , eeanndobEsuerravse ia dpbaetttw erns. inclu O, quasi-biennial oscillati eoenn , h cl u im madt ing the space-time ch an eaecvteinvtis ti etsh . roSuug ch h e im nv piarcoanrm ac e te nrtiasltidces gr oafdaetx io tre ts are currently subj nembey intraseasonal wave, and so forth. The influence of the of many studies and debates, as reflected in the 19 c9t5sw co a m te prlebxod topographical patterns and the large inland Intergovernmental Pane inland wat ieersbiosdv ie e s ry insc ig lu n d if eicL an ak teinViKce to nryiaa . , w Th h e ic h la h rg aess in c d ie inctaitfe ic d ‘d aisssceesrsnm ib elnet inf olfoncC lim lim a ate Change (IPCC) an area of about 70,000 km2 and is the second largest the recent climate trends l ’ u . eInPcCeCof te change, which freshwater lake in the world. The complex topo­ ever, that no conclusive evidence ( 1h9u9m5a ) nnaoctteid vi , tiheosw in ­ K gr i a li p m hical patterns include Mt. Kenya, Mt. human-can be derived fo anjaro, and the Great Rift Valley with its accurate inmdeutcheoddscf li omrattheed ch et aencgte io nsiagnnd al s a tt urn ib ti ult io mnoroercaltitm en a d te anptroccheasisnesofcamnobuentoab in ta s i . n D ed e ta fr i o ls of the regional natural/anthropoge f Anyamba 1992, Fremming 1970, manOdg al F lo in 1d9 la 9 te 3 r , acn ha dng ac e cu si rgan te a ls cla im re atanv ic a ilab ( lhe, u m to agne -t ihnedrucweid th ) ad celq im ua attee 1966. tch li e m si ast . ecSheavnegrees , icnocnes lu eddqau ta e n for testing various hypo­ patterns of extreme clim iantge ces ecvheanntgseosf in htuhmeasnp -a icned -u ti c m ed e like drought, would cDorm ou pgohntenatnsdoofthnear tu erxatl reme climate events are normal h ca ig ll hlfiogrhtceld ea brym th it eigIaPtC io C n . and adaptation policies, as iam nd pacco ts m m of onthpehseenon me n in atew ra o n rl nduwaildceliemvaetreyvyaeraira . b T ili htey men Gtlaolbadlegcroandcae ti ronnapbrooucte ss heusmaannd -i nsduusc ta eidn ab ein li vtiyr on o ­ f m an idn im ad al eqiuna the de atural disasters, however, te drou v g el hotpesdhoccokunatbrs ie osrbw er hserheaveef fi b ci aernettniaetsurlaeld re to so u een Conference th rc ees vita on o rga Enlnivstao ir t most o io nnmeonfs ocioecon t the anUdn it oemd ic Naat ctivi­ Sustain iaobn le s

Droughts ◽  
2016 ◽  
pp. 84-84
Keyword(s):  
Natural Disasters ◽  
Tropical Cyclones ◽  
Conclusive Evidence ◽  
Climate Trends ◽  
Recent Climate ◽  
The World ◽  
Adaptation Policies ◽  
The Many ◽  
Great Rift Valley ◽  
Climate Events

“All in a Garden Green”: Shakespeare's Staging of Garden Imagery

2019 ◽  
Vol 26 (2) ◽  
pp. 227-252
Author(s):  
Deborah Solomon
Keyword(s):  
Early Modern ◽  
Literary Tradition ◽  
The Public ◽  
The World ◽  
Audience Interaction ◽  
The Many ◽  
Green World

This essay draws attention to the surprising lack of scholarship on the staging of garden scenes in Shakespeare's oeuvre. In particular, it explores how garden scenes promote collaborative acts of audience agency and present new renditions of the familiar early modern contrast between the public and the private. Too often the mention of Shakespeare's gardens calls to mind literal rather than literary interpretations: the work of garden enthusiasts like Henry Ellacombe, Eleanour Sinclair Rohde, and Caroline Spurgeon, who present their copious gatherings of plant and flower references as proof that Shakespeare was a garden lover, or the many “Shakespeare Gardens” around the world, bringing to life such lists of plant references. This essay instead seeks to locate Shakespeare's garden imagery within a literary tradition more complex than these literalizations of Shakespeare's “flowers” would suggest. To stage a garden during the sixteenth and seventeenth centuries signified much more than a personal affinity for the green world; it served as a way of engaging time-honored literary comparisons between poetic forms, methods of audience interaction, and types of media. Through its metaphoric evocation of the commonplace tradition, in which flowers double as textual cuttings to be picked, revised, judged, and displayed, the staged garden offered a way to dramatize the tensions produced by creative practices involving collaborative composition and audience agency.

Employee engagement and the work-family conflict relationship: The role of personal and organisational resources

2019 ◽  
Vol 40 (2) ◽  
pp. 118-138
Author(s):  
Okechukwu Ethelbert Amah
Keyword(s):  
Employee Engagement ◽  
Family Conflict ◽  
Empirical Studies ◽  
Hierarchical Regression ◽  
Personal Resources ◽  
Conservation Of Resources ◽  
Work Family Conflict ◽  
The World ◽  
Work Family ◽  
Operational Issues

Organisations in Africa face constant challenges on account of internal operational issues, and the economic and political situation on the continent. Hence, organisations in Africa and indeed all over the world are expected to be continuously efficient and effective in the use of scarce resources in order to survive. Accordingly, studies conducted all over the world, including in Africa, have established that high employee engagement is beneficial to organisations, because engaged employees exhibit discretionary behaviour that achieves superior business results. However, some studies suggest that organisations are also faced with the undesirable situation in which highly engaged employees experience high levels of work-family conflict. This relationship has implications for both productivity and ethical aspects, and past empirical studies have been unable to suggest a way out. This study proposes that, on the basis of the conservation of resources model and job demand and resources model, organisational and personal resources could play a major role in resolving the dilemma. Hierarchical regression analysis confirmed that organisational resources, servant leadership and personal resources were able to provide a solution, so that individuals with high values of these resources experienced less work-family conflict. The study also discussed the practical implications of the results for HRM and sustainability HRM.

Disaster Diplomacy as an Alternative Approach for Indonesia's Instrument of Foreign Policy in ASEAN

2018 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
Arfin Sudirman ◽  
Animbyo Cahya Putra
Keyword(s):  
Foreign Policy ◽  
Natural Disaster ◽  
Disaster Management ◽  
Emergency Response ◽  
Qualitative Methodology ◽  
Regional Cooperation ◽  
Focal Point ◽  
Disaster Prevention ◽  
Alternative Approach ◽  
Tsunami 2004

ASEAN is one of the regions with the highest rate of disaster vulnerability. Tsunami 2004 has triggered the momentum for Indonesia and ASEAN to deal with disaster-related issues more seriously. Losses and casualties from the catastrophe led to the decision by Indonesian government to put disaster prevention and risk reduction as a priority. Indonesia continues to encourage and supporting ASEAN in order to improve the region’s capability to deal with natural disaster. Through AADMER (ASEAN Agreement on Disaster Management and Emergency Response) that was signed in July 2005, ASEAN held an unequivocal and defined base in any efforts of disaster management, especially in the ASEAN region. Through Qualitative Methodology, this paper will discuss about how the disaster diplomacy of Indonesia contributes to the improvement of ASEAN’s capability in the disaster management, but also examines BNPB as both the backbone and the focal point of Indonesia’s disaster management, which then leads up to how disaster can abolish certain diplomatic hurdles, as well as improving regional cooperation, and strengthen the Indonesia’s position as a key country in regional disaster management.

PERILAKU PEDAGANG MUSLIM DALAM TINJAUAN ETIKA BISNIS ISLAM (KASUS DI PASAR LOAK JAGALAN KEDIRI)

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Alwi Musa Muzaiyin
Keyword(s):  
Business Ethics ◽  
Key Words ◽  
Luxury Goods ◽  
The World ◽  
Goods Market ◽  
Islamic Business Ethics ◽  
New Goods ◽  
The Many ◽  
Used Goods ◽  
The City

Trade is a form of business that is run by many people around the world, ranging from trading various kinds of daily necessities or primary needs, to selling the need for luxury goods for human satisfaction. For that, to overcome the many needs of life, they try to outsmart them buy products that are useful, economical and efficient. One of the markets they aim at is the second-hand market or the so-called trashy market. As for a trader at a trashy market, they aim to sell in the used goods market with a variety of reasons. These reasons include; first, because it is indeed to fulfill their needs. Second, the capital needed to trade at trashy markets is much smaller than opening a business where the products come from new goods. Third, used goods are easily available and easily sold to buyer. Here the researcher will discuss the behavior of Muslim traders in a review of Islamic business ethics (the case in the Jagalan Kediri Trashy Market). Kediri Jagalan Trashy Market is central to the sale of used goods in the city of Kediri. Where every day there are more than 300 used merchants who trade in the market. The focus of this research is how the behavior of Muslim traders in the Jagalan Kediri Trashy Market in general. Then, from the large number of traders, of course not all traders have behavior in accordance with Islamic business ethics, as well as traders who are in accordance with the rules of Islamic business ethics. This study aims to determine how the behavior of Muslim traders in the Jagalan Kediri Trashy Market in buying and selling transactions and to find out how the behavior of Muslim traders in the Jagalan Kediri Trashy Market in reviewing Islamic business ethics. Key Words: Trade, loak market, Islamic business

Individuality and Beyond

2019 ◽  
Author(s):  
Benedetta Zavatta
Keyword(s):  
Moral Autonomy ◽  
First Line ◽  
Philosophical Interpretation ◽  
Individual Personality ◽  
The World ◽  
Regulative Ideal ◽  
Personal Library ◽  
The Many ◽  
The Individual ◽  
The Impact

Based on an analysis of the marginal markings and annotations Nietzsche made to the works of Emerson in his personal library, the book offers a philosophical interpretation of the impact on Nietzsche’s thought of his reading of these works, a reading that began when he was a schoolboy and extended to the final years of his conscious life. The many ideas and sources of inspiration that Nietzsche drew from Emerson can be organized in terms of two main lines of thought. The first line leads in the direction of the development of the individual personality, that is, the achievement of critical thinking, moral autonomy, and original self-expression. The second line of thought is the overcoming of individuality: that is to say, the need to transcend one’s own individual—and thus by definition limited—view of the world by continually confronting and engaging with visions different from one’s own and by putting into question and debating one’s own values and certainties. The image of the strong personality that Nietzsche forms thanks to his reading of Emerson ultimately takes on the appearance of a nomadic subject who is continually passing out of themselves—that is to say, abandoning their own positions and convictions—so as to undergo a constant process of evolution. In other words, the formation of the individual personality takes on the form of a regulative ideal: a goal that can never be said to have been definitively and once and for all attained.

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