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  1. Interactive Area for Members - Feedback and Comments This area is for you "the forum members" to get more involved where you will be able to share your views, comments, feedback and ideas about any aspect of this Research Portal by using the standard "reply to this topic" option below this page. You may have found a paper that you feel is suitable for the portal and would like us to upload the link into the portal. Full instructions for this are shown lower down on this page. Your Feedback, Comments and Suggestions There may be all sorts of reasons why you might wish to contribute to this area. These are just a few of them: 1. To help other visitors and researchers - for example: recommending further reading and suggesting other suitable papers covering specific "teleconnection" related subjects (see full instructions below). 2. You might wish to make comments or suggestions to the research portal moderators - for example; you might be aware that a particular author or paper has been discredited or the paper or theory has been superseded or supplemented by a later paper. We do not wish to or cannot be "judge and jury" and we will rely on input and feedback from you, the readers. So please bring this to our attention. 3. You may wish to provide a link to a special site where you feel certain information/data/charts are very useful and this is not easy to find in a run of the mill search (see full instructions below). 4. You may have noticed an error - for example: we may have missed out inserting a tag, used on a paper, into the search list. Please let us know. 5. You may have ideas for how we might develop the portal further or feedback on the current functions. 6. You may wish to discuss something that you have read in one of the papers. Holding Area for Members to Park Papers Awaiting Upload - Requirements and Instructions (+ example) If possible please provide the following details and copy this into the standard "reply to this topic" shown under this page: - the full title - the author(s) - the publication date or year (if known) - copy the full abstract or summary if there is one (if not then a brief description about the theme and contents of the paper would be helpful) - state the tags required (or alternatively, the main teleconnection related topics featured in the paper). Direct link to List of Tags (in User Guide) - copy the link to the full paper (please do not copy the whole paper). - add a note if you have anything to explain to us. Then one of us will upload it. Here's an example of one that was uploaded earlier to show the information required (with instructions in red): Mountain Torques and Northern Hemisphere Low-Frequency Variability. Part I: Hemispheric Aspects (full title) Authors: Francois Lott, Andrew W. Robertson and Michael Ghil (author/s name – if there are many authors you can use the first name and then “et al”) First Published: 2001 (the date the paper was “first published” if known which may be much earlier than when it first appeared online – or both dates) Abstract: (the full abstract or summary if there is one and the link to the abstract) The NCEP–NCAR reanalysis dataset for 1958–97 is used to analyze intraseasonal variations in mountain torques and the large-scale atmospheric circulation patterns associated with them. Spectral analysis of the atmospheric angular momentum (AAM) budget shows that the dominant variations of mountain torque have periodicities near 30 days and shorter, while the dominant AAM variations occur in the 40–60-day band. This difference is due to the 40–60-day AAM variations being primarily related to equatorial processes, while mountain torque variations are associated mostly with extratropical processes. The Northern Hemisphere (NH) mountain torque has enhanced power and significant spectral peaks in the 20–30-day band. The signal in this band accounts for 33% of the NH mountain torque variance, once the seasonal cycle has been removed. Lag composites of the NH 700-hPa geopotential heights based on the 20–30-day mountain torque signal show the latter to be associated with coherent large-scale patterns that resemble low-frequency oscillations identified in this band by previous authors. The composite patterns that are in phase quadrature with the 20–30-day NH mountain torque have a pronounced zonally symmetric component. These patterns are associated with substantial AAM variations, arguably driven by the NH mountain torque in this band. Principal component (PC) analysis of the NH 700-hPa heights shows that, in the 20–30-day band, the mountain torque is also in phase quadrature with the two leading PCs; the first corresponds to changes in the midlatitude jet intensity near the subtropics, while the second corresponds to the Arctic Oscillation. The relationships with AAM of the latter essentially occurs through the mass term. Mountain torques are, furthermore, nearly in phase with dominant patterns of low-frequency variability that exhibit substantial pressure gradients across the Rockies and the Tibetan Plateau. Link to full paper: (the link to the full paper which may be from another source if it is blocked as a “free-to-view” option on the main source) https://journals.ametsoc.org/doi/pdf/10.1175/1520-0469(2004)061<1259%3AMTANHL>2.0.CO%3B2 Please note that the following tags were allocated to this paper: mt, aam, mjo (your suggestion for suitable tags – optional as we can add these) (please add any specific comments that you wish to make related to the paper that you would like us to include in the upload)
  2. Bring Back 1962-63

    Introduction and Welcome Page

    Introduction to the Research Portal We wish all visitors a very warm welcome to this Research Portal and we hope that there will be something useful here for everyone from early learners right through to professional meteorologists. The main purpose of the portal is to provide back-up and various types of support for the "Teleconnections: A More Technical Discussion" thread, "The Arctic Thread" and the "Stratospheric Discussion and Forecasting" thread (click on any of the titles for direct links) as well as some other specialist threads. Many of the features in this portal will evolve steadily over a period of time in a number of different ways. I summarise them below: Links to Research Papers and Specialist Sites There is a vast amount of information on teleconnections and related matters available through the internet. We are building up a library or store of research papers and articles - not the actual papers but the links to them. We are providing an abstract or summary of each paper which has been reviewed and allocated tags to enable specific topic searches so that you can easily find papers relating to your particular area of interest. Please refer to the "User Guide, Searching By Tag and Key To Tags" page for a full explanation on how to use this facility and a list of all the tags. Here's a direct link to that page: User Guide Index to Papers and Arcticles We have created a comprehensive "Index to Papers and Articles" page which lists all the titles under specialist topic headings. Where papers cover several topics the title will appear under multiple headings. Many visitors seem to prefer browsing through the index rather than completing a tag search. We recommend that you try out both of the options so that you can decide which one is your preference. Here's a direct link to that page: Index to Papers and Arcticles Where papers appear on the teleconnections or other specialist threads in any post, the link to that paper is quite likely to find its way into this portal. Some of the papers in the portal will be particularly relevant to a current topic and then one or more posts might appear on the thread with a review of the paper(s). We intend to prioritise adding a number of relevant papers to support some of the ongoing discussions and debates. To access data, charts, the models etc there are already links to various sites provided elsewhere on the forum. This is fine for standard purposes. Some sites (such as NOAA) are vast and certain specialist data and/or archive records can be very difficult to locate and can take many hours to find. We have been adding links to some of this data in the portal using the same process as for the research papers. You will be able to post comments about individual papers/articles/sites listed in the portal by using the standard "reply to topic" option on that particular page. You may wish to provide your own review of a specific paper and/or author and we shall be happy for these to appear. This might be particularly relevant to very recent papers. For more general comments see below. Interactive Area for Members Please note that we have provided an "Interactive Area for Members" where you will be able to give your views, comments, feedback and ideas about any aspect of this Research Portal by using the standard "reply to topic" option below that page. This might be used for a number of reasons including: 1. To help other visitors and researchers (e.g. recommending further reading and suggesting other suitable papers covering specific "teleconnection" related subjects). If you provide details, then we can add this (or these) to the portal. The full instructions, including an example paper and shown in the "Interactive Area". 2. You might wish to make comments or suggestions to the research portal moderators. For example you might be aware that a particular author or paper has been discredited or the paper or theory has been superseded or supplemented by a later paper. We do not wish to or cannot be "judge and jury" and we will rely on input and feedback from the readers. 3. You may wish to provide a link to a special site where you feel certain information/data/charts are very useful and this is not easy to find in a run of the mill search. Here's a direct link to that page: Interactive Area Future Development Plans for the Research Portal A feature that some of you might find very useful is a "Glossary of Terms and Short Definitions" section. This is intended to be more than a standard glossary as we are aiming to provide simple and concise dictionary type definitions of each of the teleconnections. This section is currently hidden as we have not had the time to develop hit. Our intention is to prioritise placing links to papers and articles into the Research Portal. Apart from links to papers and specialists sites, another exciting feature that we are planning for this Research Portal "will be" the"Learning Area". The main theme will be to provide various aids to assist everyone who wants to learn more about the teleconnections. There will be guides and direct access to educational sites. We will be producing a few of our own simple guides to "Understanding the Basics" of different teleconnections (such as the SPV - Stratospheric Polar Vortex or MT - Mountain Torque). These will usually contain helpful annotated charts and diagrams. The idea will be that those reading some of the more advanced posts on the main teleconnections thread may wish to learn more about the basics or to remind themselves of one or two of the key points. As each guide in the series is written, it would appear on the main thread. The learning area will provide access to the full list of the titles (with direct links to each one). This would allow any forum members to focus on them and perhaps read through a number of them at the same time. We may add a more advanced learning section at a later stage. Due to time constraints and the other priorities, it may be well into 2019 before we are ready to roll this out. Supporting the 33andrain Forum - Making a Donation As most members are probably aware, this site is run entirely by volunteers and weather enthusiasts. Many of us are happy to support and to contribute towards the ongoing development of this forum. There are substantial costs in maintaining the site, providing the software and developing new functionality. The space is hired and as the site expands, yet more space is required and costs start to escalate. This research portal is likely to take up a lot of space but we hope that many of the facilities will prove to be popular and will also help to attract new members. Some of you may wish to access many different papers and use the portal regularly. Whilst the portal moderators/editors/administrators are happy to provide their time on a purely voluntary basis out of their love for this wonderful subject we do need to ensure that all these costs are covered. Perhaps you might consider making a donation (or even an additional donation if you've already made one). The blue "Donate Today" tab appears at the top of this page or the donation table appears to right on this thread's homepage. Here's the link: Donate Please Note: If anyone wishes to discuss anything that appears on this page, please do so in our “Interactive Area”. Here’s the link: Interactive Area
  3. USER GUIDE, HOW TO SEARCH BY TAG AND KEY TO SEARCH TAGS Although the general "Index to Papers and Presentations" (direct link: Index) has proved to be a popular way to find papers in this Research Portal, there is a way to search for very specific topics using the tags facility. The tags are intended to make it easier for you to search for papers and presentations that contain information relating directly or indirectly to a teleconnection. You can gather all papers with your nominated tag into a single list. Then you will be able to review the search result list, look at the abstracts and decide which research is relevant to your needs. You have the option to click on the "link to the full paper" which is located under the abstract or summary. This will take you to the source of the research and you can choose to read or download the full paper. Many research papers cover more than one of the teleconnecions. For example, a paper on the causes of a Sudden Stratospheric Warming (SSW) may cover the role and interaction of some of the other key drivers such as the El Nino Southern Oscillation (ENSO) state, Atmospheric Angular Momemtum (AAM), Mountain Torque (MT) or the Madden Julian Oscillation (MJO). We have done our best to review all the papers and articles listed in this Portal and allocate the appropriate tags. In the example above we allocate SSW and then one or more of ENSO, AAM, MT and MJO. If a teleconnection only gets a brief and insignificant mention then it is unlikely to appear in the tag list for that paper. The longer and more complex papers are more likely to be allocated the most tags. After reading the paper, if you feel that a particular tag should be included or excluded, we would appreciate you drawing this to our attention. Instructions for Advanced Search of Content (searching by tag) To find all papers and articles that have a tag for a particular teleconnection you will need to undertake an advanced search as follows: - go to the search box in the top right corner of the page and click on the magnifying glass symbol on the right side of that box - this will take you to the "Seacrh the Community" page - ignore the large box - under "Content Search", select "search by tag" - enter the search term of your choice in that box, using our tag list (see below.) eg: ssw or mjo (do NOT click) - under content type, select "topic" - the "Forums" list appears; scroll down and select "Teleconnections Research Portal" - you can ignore the other options unless you wish to narrow your search further - then click on the black "Search Content" box in the bottom right corner - this will show a list of all the titles which have been allocated to your search tag Key to Search Tags PLEASE NOTE: The tags list below is steadily evolving and more will be added, especially as the number of available research papers steadily increases. When a paper is entered using a new tag (one that hasn't been used previously) we will endeavour to add them to the list. If anyone finds a tag on a paper that is not included in the list, please can you bring this to our attention. Many of the tags are abbreviations but the full word or words is/are shown for some topics. The following tags, shown in bold type, have been used and are in alphabetical order: aa - Arctic amplification african easterly wave - amoc - Atlantic Meridional Overturning Circulation antarctica - arctic sea ice - ice cover and ice loss arctic warming - aam - atmospheric angular momentum aao - Antarctic oscillation aco - Antarctic centennial oscillation amo - Atlantic multi-decadal oscillation ao - Arctic oscillation aogcm - Atmosphere-Ocean General Circulation Model atmospheric waves - gravity waves, solar tides, Rossby and Kelvin waves (see also planetary waves) blocking - when related specifically to teleconnections brewer-dobson circulation - cpw - central Pacific warming coriolis force - coupling - referring to stratosphere and troposphere coupling critical point - cyclogenisis - eamt - East Asian mountain torque earth's magnetic field (see under magnetic field) - educational papers and guides - el nino - enso warm phase enso - El Nino Southern Oscillation ep flux - Eliassen & Palm Flux epo - Eastern Pacific Oscillation equatorial torques - ft - frictional torque general circulation (of the atmosphere) - gcm - global circulation model glaam - global atmospheric angular momentum (see under aam) glmt - global mountain torque global dimming - global temperatures - gravity - gravity waves - gsdm - global synoptic dynamic model gwo - global wind oscillation history (of a teleconnection + very early papers) - hurricanes - iod - Indian Ocean dipole jet - jet stream jet streaks - la nina - enso cold phase magnetic field (earth's) - major midwinter warming - refer to sudden stratospheric warming (ssw) mci - meridional circulation index mesophere - mjo - Madden Julian Oscillation mongolian mountains - mountain waves - mt - mountain torque multi-decadal variability - nam - northern annular mode nao - north Atlantic oscillation namt - North American mountain torque northern hemisphere variability - npi - north Pacific index npp - north Pacific pattern ocean currents - oni - oceanic nino index orographic drag, orographic forcing, orographic waves - this is similar to mountain waves/torque (papers use various terminology) pco - Pacific centennial oscillation pdo - Pacific decadal oscillation planetary waves - see also under rossby waves pmo - Pacific multi-decadal oscillation pna - Pacific/North American (teleconnection pattern) polar vortex intensification - psa - Pacific/South American (teleconnection pattern) pv - polar vortex qbo - quasi biennial oscillation rrwt - recurring Rossby wave train rossby waves - see also under planetary waves sam - southern annular mode samt - South American mountain torque seasonal forecasting - seasonal wavelengths - see glossary and definitions sc - solar cycle solar heating and impacts - ssc - sunspot cycle sst - sea surface temperatures ssw - sudden stratospheric warming soi - southern oscillation index southern hemisphere - spv - stratospheric polar vortex standing waves - stationary waves - stratopause - stratosphere - storm tracks - teleconnection paths - thermosphere - tibetan plateau - tmt - tropics mountain torques tornadoes - torque - other torques (not ft or mt) tpv - tropospheric polar vortex tropical rainfall - tropopause - troposphere - volcanic eruptions and volcanism - vortex intensification - the period when the stratospheric vortex rapidly intensifies in strength walker circulation - wave activity flux - wave breaking - wave reflection - planetary wave-1 reflection involved in stratosphere-troposphere coupling. winds - Please Note: If anyone wishes to discuss anything that appears on this page, please do so in our “Interactive Area”. Here’s the link: Interactive Area
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