The blog
© Maritime Museum of Tatihou Island 2005
No, these are not the catastrophic rantings of an inveterate collapsologist, but a very serious study reported by the climatologist Stefan Rahmstorf. I give here a French and freely adapted transcription.
The warm currents that reach Europe are now called by climatologists AMOC, in English the "Atlantic Meridional Overturning Circulation". Read more …
Episode 2 – Illustrations
Forecasts IFREMER (see Episode 1) available in Weather4D are of two kinds :
These files concern areas of the Channel and Atlantic whose coverage and resolutions are significantly different. Read more …
Episode 1 – Description
Since 7 May 2024 the latest versions of Weather4D have been enriched with several new weather and ocean models (¹). Among the latter, ultra-high resolution current and wave forecast models from’Ifremer come in addition to Copernicus models (formerly called MyOcean) for the Channel and Atlantic coasts. These forecasts are provided with hectometric grids, can be reduced up to 190 meters for some models. So Ifremer, what is ? Read more …
In Weather4D, as generally in other applications, sea state forecasts are described by ocean models. The most used is the model WW3 (Wave Watch III), published by FNMOC (Fleet Numerical Meteorology and Oceanography Center) of the US Navy, with a global model due to 7 days and resolution 1° (60NM), and a Europe model to 3 days and resolution 0.2° (12NM). Météo-France publish the models MFAUM (Wave Assimilated Model) coupled with the ARPEGE and AROME weather models with three resolutions : Global at 0.5° (30NM), Europe at 0.1° (6NM), France at 0.025° (1,5NM) with variable deadlines (¹). Read more …
This could be a subject of the Baccalaureate in Economic Sciences, and although I never took this exam (because of post-68 incompatibility and Cancerism chronic) The subject seems to me sufficiently imminent and serious to attempt to deal with it, from my modest point of view. Read more …
Improvements…No respite for this application : two and a half months after integrating the currents into the routing calculation, this latest version provides significant advances on this function. The improvements bring greater precision to the calculation of the optimized route and new parameters allow for fine-tuning.
They concern currents, follow the leader… Read more …
With the version 1.3.2, Weather4D PRO allows to get and display currents as GRIB data. To begin with, currents available are provided with subscription by Tidetech, I mentioned there in the past (¹). Once entered in Weather4D PRO settings a username and password, provided at the time of subscription, you can access Tidetech global catalog.
Only one PRO subscription to Tidetech allows you to obtain files in GRIB format. The company is considering a specific offer for applications on iPad / iPhone. Read more …
I deliberately title this article in the form of a question. Many users, all countries included, want the visualization of currents in Richard Ray's applications. Indeed, there is no display function of the currents in GPSNavX, MacENC and iNavX. It is a deliberate choice by the developer because there are many data sources and all hydrographic services are unwilling to provide their files in digital format. In addition, Users are likely to take data displayed on their cards as safe and certain, With consequences that could engage the liability of the publisher and legal risks, especially in the USA, too big for the developer. Read more …