Autumn and the NH Polar Jet Stream (By Diego Fdez-Sevilla, Ph.D.)
Diego Fdez-Sevilla PhD.
CV english and español. Resume.
( DOI: 10.13140/RG.2.2.25290.06084 Available in pdf at https://www.researchgate.net/publication/320473024_Autumn_and_the_NH_Polar_Jet_Stream_by_Diego_Fdez-Sevilla_PhD)
Through the NH Autumn period the equatorial zone of influence (ITCZ) moves to the south as well as the Polar Jet Stream come lower in latitude.
There are several implications derived from this changes. However, the state of the Polar Jet has been weak and wobbly through this decade. Having a weak Jet Stream means that the transition between seasons and its change in latitudinal location is not homogeneous in space and neither constant in time. Its erratic behaviour has increased the probability of seeing atmospheric developments which could be considered out of season due to their characteristics, their location and their timing. Atmospheric developments which sometimes are expressed in the form of thermal deviations from their geographical climatic regime (temperatures reaching higher/lower values than those expected for a specific location in an specific part of the year). But also the alterations brought by an unstable atmospheric compartmentalization is related with the developments of some type of storms.
The change in latitudinal position for the Polar Jet stream moving south over the NH American continent increases the probability of seeing low pressure developments moving from the East Pacific across the continent towards the East coast of America. Altogether such scenario increases the probability of having one of those low pressure systems colliding with warm currents from the Gulf bringing similar developments as those seen with the storms Juno or Jonas.
I think that we have arrived at this part of the year where it is time to start watching out for low pressure developments coming from the Pacific basin moving across North America.
Previous storms sharing this type of genesis were called Juno and Jonas. Therefore, I vote for the next one should be called Janet so it is kept the J-N- in the name.
Previous related publications:
January 28, 2015 | The origin of the Storm “Juno” 27 Jan 2015 (by Diego Fdez-Sevilla) |
January 20, 2016 | North American Weather. Old News, Same News? (by Diego Fdez-Sevilla) |
Current atmospheric conditions
Atlantic Basin
Meanwhile, over the Atlantic basin, the weak state of the Polar Jet Stream has allowed for the development of a low pressure travelling from the Arctic towards tropical latitudes, causing floods and strong winds over the Canary Islands.
The atmospheric conditions shown by this low pressure development, through time and space, show to carry enough strength to move through latitudes and to have a vertical profile from surface level all way up to the Jet Stream 250 hPa.
Based on previous assessments published throughout the present line of research this scenario indicates that the atmosphere around this system is not able to absorb fast enough the energy contained by the system to dissipate the energy carried within.
This situation is not new and it has kept as constant in the recent years despite variations in SST or atmospheric Indexes such as NAO, AO, MJO…
In 2014 the analysis of the scenario created by the erratic behaviour of the Polar Jet Stream became a theoretical proposal offering an explanation over the mechanisms driving the atmospheric developments observed. (theoretical proposal and review)
Seeing how same developments repeat their configuration in space and time brings me to close a circle in the line of the research published in this blog over 170 publications addressing assessing the impact of transformations in the solid, liquid and gaseous phases of the energy flows driving our environment triggering a climatic drift.
In a nutshell I would resume my approach as follows:
The energy flows in our environment is formed by energy sources and sinks using the atmosphere as the medium through which energy is transferred between the liquid, solid and gaseous phases of the environment. The major change identified in geological times is the constant and increasing force behind the transformation of the structure and composition of all those phases due to human activities. Such transformation has altered the sources and sinks of energy as well as it has modified the conductance properties of the mediums transferring the energy contained in the Earth system. All the modifications carried by human activity reduce the capacity of environmental energy sinks, biotic systems, as well as introduce new sources of energy from all the activities which are applied in the development of our societies and industry.
The incapacity for the environment to use energy sinks against the energy being contained in the Earth system, altogether with the increase in thermal conductance of the atmosphere due to GHGs, and the increase in albedo due to land use and cover, increases the amount of energy being transferred within the system triggering an increase in turbulence, beginning within the less dense phase of the environment, the gaseous phase or atmosphere. Such energetic imbalance jeopardise the structural integrity of the atmospheric compartmentalization weakening the strength of those features built upon steep differences in energy gradients or thermal gradients (Jet Steams and Polar Vortex), and generating other resilient features which have no place where to dissipate their energy like blocking patterns, strong cyclonic profiles in altitude and storms able to persist in time and distances.
Ultimately, the dynamics of the atmosphere driving climatic temperatures and humid regimes in latitude and altitude would suffer an increase in the mixing ratio between masses of air otherwise kept isolated thanks to the compartmentalised nature of its previous configuration. The outcome from this evaluation points to an increase in the erratic behaviour of seasons and atmospheric dynamics. Neither global warming or global cooling being a “global trend”. Instead, the exchange of masses of air from mid-latitudes into polar latitudes will force displacements of air masses from high latitudes affecting the dynamics of the whole system without a predictive pattern other than following the thermal properties of the mediums dominating the local situation. Thus contrasts between land and oceans (see category Influence of continentality, and previous posts ref1 and ref2).
All publications addressing this line of research can be found at the page Timeline and framework.
All started with the following assessments:
October 21, 2014 | New theory proposal to assess possible changes in Atmospheric Circulation (by Diego Fdez-Sevilla) |
November 14, 2014 | Why there is no need for the Polar Vortex to break in order to have a wobbling Jet Stream and polar weather? (by Diego Fdez-Sevilla) |
February 10, 2015 | (UPGRADED 24th March2015) Revisiting the theory of “Facing a decrease in the differential gradients of energy in atmospheric circulation” by Diego Fdez-Sevilla. |
September 14, 2016 | Between Global Cooling and Global Warming There Is “Global Mixing” (by Diego Fdez-Sevilla, Ph.D.) |
September 22, 2016 | Solar Forcing in Our Climatic and Atmospheric Dynamics. Location, Location, Location (by Diego Fdez-Sevilla, Ph.D.) |
October 13, 2016 | Global Mixing in Atmospheric Dynamics (by Diego Fdez-Sevilla Ph.D.) |
Some imagery from previous publications
You can see also more animations at the youtube channel
Author’s Disclosure Declaration
For those unaware of the content offered in this blog I might have to issue a warning: Handle with care. Also with the product obtained from scientific analytical thinking there are traces of personal and professional “passion”, by-products obtained from “original and unpeered grey matter juice” originated from “independent critical thinking”. Also sometimes the packaging might be rough around the edges due to its “unfunded nature”.
4 years ago I joined a discussion which made me realise how much knowledge was settled on the past, built upon past conventions and unable to give answers about present developments in all parts of our environment. From the impact from GMOs, plastics, soils degradation, atmospheric composition, land use and cover, water cycles, … I had addressed scientifically unanswered questions before doing my PhD so I decided to give it a go and to offer my take over those gaps. It has been a pilgrimage to become aware of how much faith and fear is put on scientific publishing above raw understanding and discussion.
I do not know how far this blog will go, however, it represents the assessment of a global process and I expect that past posts will become a description of continuous present for the next years.
Altogether, the body of work which represents the line of research presented in this blog is composed by 170 pieces, covering data analyses and conceptual discussions. All those different discussions and assessments presented here build together a single concept. The format applied is the result of making a big effort trying to apply simplistic approaches with the aim to allow a multidisciplinary access. Since the topics treated in my publications have implications for many sectors in the academic and not academic world, with the aim of allowing my research for open review, there is also the objective of allowing access to a multisectorial and multidisciplinary audience sharing interest.
Diego Fdez-Sevilla Ph.D.
For a more profound discussion over my assessments and analyses as well as constructive feedback, please use my email d.fdezsevilla(at)gmail.com.
My agenda is simple, I am in transition looking for either funding to grow the research published in this blog or for a job position in any field in which my assets are valued. Behind my research there is nothing more, nothing else than to showcase my capabilities doing what I like, research. I am a methodologist. I don´t look at the color of the result obtained, only at the suitability of the method and the coherence of the result. As I have said before, if I am wrong on my assessments and conclusions, it will be better for all, and my work would showcase my capabilities anyway. A CV shines the goals obtained by anyone, but by publishing here my research, I expose myself and my work to public judgement. There is a difference between being naive and raw. If you see the difference you will understand better my work and my personal position.
The aim of publishing my work openly is to allow for it to be exposed for an open review. So any constructive feedback is welcome. After a period of time of at least a month from the publishing date on this blog and at LinkedIn, if no comments are found refuting the value of the piece published I then publish it at ResearchGate generating a DOI for posterior references.
In order to protect my intellectual rights, more assessment in depth and the statistical and numerical analyses that I have performed to support my arguments can be discussed at my email: d.fdezsevilla(at)gmail.com
If you find that my work is worthy to be acknowledged, share your thoughts openly and publicly because by sharing public acknowledging over the value of my work is what will help me in order to find the attention from those able to allow me access to a job position or resources to increase the functionality of my research.
(This post is part of a more complex piece of independent research. I don´t have funding, political agenda or publishing revenues from visits. Any scientist working in disciplines related with the topics that I treat in my blog knows how to judge the contribution that my work could potentially add to the state of knowledge. Since I am in transition looking for a position in research, if you are one of those scientists, by just acknowledging any value you might see from my contribution, would not only make justice to my effort as independent researcher, but ultimately, it will help me to enhance my chances to find a position with resources to further develop my work.
I believe that the hypothesis that I have presented in previous posts in this blog (here, here and here) could help to understand present and possible future scenarios in atmospheric circulation. However, this is an assessment based on observation which needs to be validated throughout open discussion and data gathering. So please feel free to incorporate your thoughts and comments in a constructive manner.
If you feel like sharing this post I would appreciate to have a reference about the place or platform, by private or public message, in order for me to have the opportunity to join the debate and be aware of the repercussion which might generate d.fdezsevilla(at)gmail.com
This work is protected under Intellectual Property laws licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.)
Since October 2013 I have been publishing pieces of research studying the behaviour of the Polar Jet Stream and the weather events associated as well as the implications derived into atmospheric dynamics and environmental synergies.
Many of the atmospheric configurations and weather and climate events we see these days are very similar with the progression followed since 2013. Please take a look at posts addressing those events from previous publications in this blog or look at the categories in the top menu. Also at research-gate. Feedback is always welcomed either in this blog or at my email (d.fdezsevilla(at)gmail.com). All my work is part of my Intellectual Portfolio, registered under Creative Commons Attribution-NonCommercial 4.0 International License, WordPress.com license and it is being implemented at my profile in researchgate. I will fight for its recognition in case of misuse.
More assessments presenting chronologically the line of research published in this blog can be accessed in the category Framework and Timeline.
For anybody interested in the posts related with this discussion here I leave you those more relevant in chronological order (there are comments bellow some of them. Please check them out):
- New theory proposal to assess possible changes in Atmospheric Circulation (by Diego Fdez-Sevilla) Posted on October 21, 2014. http://wp.me/p403AM-k3
- Why there is no need for the Polar Vortex to break in order to have a wobbling Jet Stream and polar weather? (by Diego Fdez-Sevilla) Posted on November 14, 2014. http://wp.me/p403AM-mt
- State of the Polar Vortex. Broken? From 29 Nov 2014 to 5th Jan 2015 (by Diego Fdez-Sevilla). Posted on November 29, 2014. http://wp.me/p403AM-o7
- Gathering data to make visible the invisible (by Diego Fdez-Sevilla) Posted on December 22, 2014. http://wp.me/p403AM-pN
- Probability in the atmospheric circulation dictating the Weather (by Diego Fdez-Sevilla) Posted on January 15, 2015. http://wp.me/p403AM-rm
- Meteorological Outlook Feb 2015 (by Diego Fdez-Sevilla) Posted on February 7, 2015. http://wp.me/p403AM-sU
- Revisiting the theory of “Facing a decrease in the differential gradients of energy in atmospheric circulation” by Diego Fdez-Sevilla. Posted on February 10, 2015. http://wp.me/p403AM-to
- Drops of Weather. (by Diego Fdez-Sevilla)March 7, 2015
- Steering climate´s course (by Diego Fdez-Sevilla)March 27, 2015
- Climate. Looking at the forest for the trees (by Diego Fdez-Sevilla)April 9, 2015
- Matching Features Between Land Surface and Atmospheric Circulation (by Diego Fdez-Sevilla)April 23, 2015
- Domesticating Nature. (by Diego Fdez-Sevilla)May 7, 2015
- A roller-coaster of temperatures in South Europe. Spain (by Diego Fdez-Sevilla) May 14, 2015
- Talking about climate (by Diego Fdez-Sevilla)May 12, 2015
- News from an Ecosystem (by Diego Fdez-Sevilla)May 20, 2015
- In climate it is becoming Less probable to not have a High probability. (by Diego Fdez-Sevilla)May 29, 2015
- Drinking from the source (by Diego Fdez-Sevilla)June 5, 2015
- Communication takes more than just publishing thoughts. (by Diego Fdez-Sevilla)June 9, 2015
- Extreme climatic events, implications for projections of species distributions and ecosystem structure (by Diego Fdez-Sevilla)June 18, 2015
- The scope of Environmental Science and scientific thought. From Thought-driven to Data-driven, from Critical Thinking to Data Management. (by Diego Fdez-Sevilla)June 26, 2015
- Atmospheric Circulation and Climate Drift. Are we there yet? (by Diego Fdez-Sevilla)July 2, 2015
- Lateral thinking. From Micro to Macro (by Diego Fdez-Sevilla)July 4, 2015
- Something for the curious minds. Climate and Streamlines (by Diego Fdez-Sevilla)July 17, 2015
- Solar Activity and Human Activity, Settling Their Environmental Liability. (by Diego Fdez-Sevilla)July 24, 2015
- Atmospheric composition and thermal conductivity? (by Diego Fdez-Sevilla)August 6, 2015
- Latitudinal barriers and typhoons (by Diego Fdez-Sevilla)August 13, 2015
- The Earth is Ticking (by Diego Fdez-Sevilla)August 20, 2015
- What if, the relevant bit lies hidden on identifying the pattern behind similarities instead of trying to match anomalies? (by Diego Fdez-Sevilla)September 3, 2015
- A Climate “Between Waters” (by Diego Fdez-Sevilla).September 8, 2015
- Sensing Atmospheric Dynamics (by Diego Fdez-Sevilla)September 22, 2015
- InFormAtion. The “Act” of “Giving Form” to “Knowledge” (by Diego fdez-Sevilla)September 30, 2015
- Arctic Intake of Water Vapour (by Diego Fdez-Sevilla)October 7, 2015
- SST Anomalies and Heat Waves. Are They Not All Just Heat Displacements? (by Diego Fdez-Sevilla)October 16, 2015
- Discussing Climatic Teleconnections. Follow Up On My Previous Research (by Diego Fdez-Sevilla)October 21, 2015
- Follow-up on Arctic circulation 30 Oct 2015 ( by Diego Fdez-Sevilla)October 30, 2015
- There is Ice or Frost In Antarctica? (by Diego Fdez-Sevilla)November 5, 2015
- Starts Raining Drops of Winter at Mid-Latitudes. The new Autumn? (by Diego Fdez-Sevilla)November 10, 2015
- Press release. Ask NASA (by Diego Fdez-Sevilla)November 12, 2015
- Following the Behaviour of the Jet Stream (by Diego Fdez-Sevilla)November 19, 2015
- What Is Wrong With The Concept “Bio”? (by Diego Fdez-Sevilla)November 26, 2015
- Energy. Looking For Sources of Something We Waste. (by Diego Fdez-Sevilla)December 3, 2015
- SOILS. The Skeleton Holding The Muscle On Our Ecosystems (by Diego Fdez-Sevilla)December 9, 2015
- Could It Be El Niño The New “Wolf” Coming? (by Diego Fdez-Sevilla)December 11, 2015
- Climate and weather December 2015. Another Polar Vortex another Heat Wave? (by Diego Fdez-Sevilla)December 18, 2015
- New insides on old concepts (by Diego Fdez-Sevilla)December 23, 2015
- Atmospheric Dynamics And Shapes (by Diego Fdez-Sevilla)January 13, 2016
- European weather. Old News, Same News? by Diego Fdez-SevillaJanuary 15, 2016
- Observational events on atmospheric dynamics. A follow-up assessment over the theory proposed over Energetic gradients by Diego Fdez-Sevilla.January 29, 2016
- North American Weather. Old News, Same News? (by Diego Fdez-Sevilla)January 20, 2016
- Observed Atmospheric Dynamics. A follow-up assessment over the theory proposed on Energetic gradients by Diego Fdez-Sevilla.January 29, 2016
- (updated 11-18 Feb2016) Polar Vortex, Old News, Same News? (by Diego Fdez-Sevilla)February 4, 2016
- Forecasting Past Events. Snow Coming to Spain (by Diego Fdez-Sevilla)February 12, 2016
- Do You Believe in the Value of Your Work? (by Diego Fdez-Sevilla)February 23, 2016
- Forecasts For Ecosystems (by Diego Fdez-Sevilla)February 25, 2016
- Seasonality Spring 2016. Continuous follow-up on my previous research assessing atmospheric dynamics. (by Diego Fdez-Sevilla)March 3, 2016
- Tangled in Words. Atmospheric Dynamics, Stefan Boltzmann Calculations and Energy Balance (by Diego Fdez-Sevilla)March 10, 2016
- Pacific atmospheric dynamics with and without a positive ENSO (by Diego Fdez-Sevilla)March 22, 2016
- Plant growth, CO2, Soil and Nutrients. (by Diego Fdez-Sevilla)March 31, 2016
- Atmospheric Dynamics, GHG’s, Thermal Conductivity and Polar Jet Stream (by Diego Fdez-Sevilla)April 6, 2016
- Feedback. Have Your Say. (by Diego Fdez-Sevilla)April 14, 2016
- Plant an Idea and Then a Tree… But Which Ones? (by Diego Fdez-Sevilla)April 22, 2016
- (updated 28/April/2016) Severe weather warning 27 April 2016 USA (by Diego Fdez-Sevilla)April 28, 2016
- Research Update May 2016 (by Diego Fdez-sevilla)May 6, 2016
- Scientifically Challenged (by Diego Fdez-Sevilla)May 12, 2016
- Another roller-coaster of temperatures in South Europe. Spain (by Diego Fdez-Sevilla) May 13, 2015May 13, 2016
- Our Environment. One Vision and Many Thoughts. (by Diego Fdez-Sevilla) May 20, 2016
- Atmospheric Circulation and the Mixing Zone. (by Diego Fdez-Sevilla)May 26, 2016
- When Temperature Becomes Something Else (by Diego Fdez-Sevilla) May 30, 2016
- Settled Science (by Diego Fdez-Sevilla)June 9, 2016
- The Butterfly Effect on Arctic Circulation. (By Diego Fdez-Sevilla)June 10, 2016
- Who has the right and the responsibility to discuss Climate as a topic of debate? (by Diego Fdez-Sevilla, PhD.)June 20, 2016
- Snap shot of a day 22 June 2016. Follow-up on previous research over atmospheric dynamics. (by Diego Fdez-Sevilla, PhD.)June 22, 2016
- Atmospheric mixing. Indian Basin June 2016 (by Diego Fdez-Sevilla, PhD.)July 1, 2016
- Research From The Bench (by Diego Fdez-Sevilla, PhD.) July 6, 2016
- Every Little Counts (by Diego Fdez-Sevilla) July 13, 2016
- Dream Your Way Out (by Diego Fdez-Sevilla, PhD.) July 15, 2016
- Atmospheric Dynamics. Foreseeable, At The Moment. (by Diego Fdez-Sevilla, PhD.) July 19, 2016
- The Colour of Intelligence (by Diego Fdez-Sevilla, PhD.) July 20, 2016
- Climbing The Hill Of Development (by Diego Fdez-Sevilla, PhD.) July 27, 2016
- Climbing the Hill of Acknowledgement. Peer reviewed articles supporting previous assessments and research published in this blog. (by Diego Fdez-Sevilla, PhD.) July 28, 2016
- Environmental Questions and Answers for Petrol Fans (by Diego Fdez-Sevilla, PhD.) August 2, 2016
- What is on the menu? “Plastic” (by Diego Fdez-Sevilla, PhD.) August 4, 2016
- The Compartmentalization of Evolution (by Diego Fdez-Sevilla, PhD.) August 5, 2016
- Ups and Downs on Climatic Assessments. A Matter of Multiple Perspectives from the Same Point of View (by Diego Fdez-Sevilla, PhD.) August 12, 2016
- Climate. The Long Distance Between Science And Politics. (by Diego Fdez-Sevilla, PhD.) August 21, 2016
- Aug 2016 Follow-up on previous assessments. Atmospheric Dynamics, Temperature Displacements, Atmospheric Mixing (by Diego Fdez-Sevilla, PhD.) August 26, 2016
- Climate Drift, The True Meaning of Things and the Drift of Those. (by Diego Fdez-Sevilla, PhD.) September 2, 2016
- Summer is what summer brings (by Diego Fdez-Sevilla, PhD) September 5, 2016
- In Climate, Too Many Strange Things Are Happening (by Diego Fdez-Sevilla, PhD) September 6, 2016
- Between Global Cooling and Global Warming There Is “Global Mixing” (by Diego Fdez-Sevilla, Ph.D.) September 14, 2016
- Solar Forcing in Our Climatic and Atmospheric Dynamics. Location, Location, Location (by Diego Fdez-Sevilla, Ph.D.) September 22, 2016
- Forecasting Past Events In Atmospheric Dynamics (by Diego Fdez-Sevilla, Ph.D.) October 1, 2016
- Equatorial Dynamics. A conversation between Joaquin and Matthew (by Diego Fdez-Sevilla, PhD.) October 7, 2016
- Global Mixing in Atmospheric Dynamics (by Diego Fdez-Sevilla Ph.D.) October 13, 2016
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28 Oct 2018 Real-time contrast Re-call over present assessment.Also shared at my wall in Linkedin:
https://www.linkedin.com/feed/update/urn:li:activity:6451480318837866496
News reports on weather events are based on describing new developments. Therefore, for every event, new arguments are developed to describe the new that justifies making it to the news.
In scientific research, arguments increase their value the less they need to be modified throughout time in order to fit with the developments unfold after their proposal.
For this reason, in the present line of research I have applied a constant follow-up re-sharing analyses published in previous years in order to assess the validity of the conclusions raised based on those in contrast with the developments seen afterwards.
In 2013 I began to publish assessments over climatic developments, following 4 years of weekly analyses linking real time conditions with arguments explaining those. Such activity generated a seasonal agenda linking atmospheric dynamics and particular periods of the year as part of a pattern. This is how well my research would work for the current developments about Autumn.
*- Recall September 19, 2017.” this year we are seeing atmospheric dynamics and events associated occurring earlier than expected.”
https://diegofdezsevilla.wordpress.com/2017/09/19/atmospheric-dynamics-and-climatic-drifts-in-conclusion-by-diego-fdez-sevilla-phd/
*- Autumn and the NH Polar Jet Stream (By Diego Fdez-Sevilla, Ph.D.)
Posted on October 27, 2016
# See full line of research at diegofdezsevilla.wordpress and pdf with DOIs at researchgate.
Full record of shares at linkedIn can be found at the page Public Review:
https://diegofdezsevilla.wordpress.com/diego-fdez-sevilla-phds-research-reach/
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