Two years after its launch for the Route du Rhum 2022, the cross-platform routing application dedicated to gaming Virtual Regatta Offshore has been the subject of an essential update in the run-up to the Vendée Globe. It has been available since September 29 th (¹), in order to support the latest Virtual Regatta 7.0. Read more …
Category : Tutorials
How to…
InavX adopts Imray charts
With the latest version 5.6.35 from February the 25 th last September, iNavX integrates Imray charting offered by its supplier SiiTech (¹). NavX Studios does not hesitate to announce in its communication :
As the leading publisher of nautical information for leisure sailors, Imray joins iNavX, making us the first mobile navigation platform to offer and support these trusted charts..”
If the Gulf Stream ended ?
© 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 …
Update User Guide Weather4D Routing & Navigation
Update V.2.4 guides (FR/EN) of Weather4D Routing & Navigation.
- Fixed incorrect page numbering in the Summary.
As a reminder, updating books in Apple Books : Apple iBooks becomes “Books”
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After the Pacific, a possible Niña Atlantic
The Pacific Ocean is switching from an El Niño event at the beginning of the year 2024 to a La Niña event expected at the end of this summer. But it seems, for NOAA scientists, that a similar phenomenon is also occurring at this same time in the Atlantic Ocean (¹). Read more …
After El Niño 2023 here is La Niña 2024
The climatic phenomenon ENSO (El Niño Southern Oscillation) had experienced a new episode El Niño towards the end of spring 2023 in the tropical regions of the Pacific (¹). After reaching a peak between November and December 2023, the phenomenon began to decrease (²). During the second quarter 2024 he returned to a situation called " Neutral ”. But quickly from July a new episode La Niña started, whose climatic consequences are the opposite of the previous episode.
Source : NOAA Climate / ENSO Blog Read more …
Currents and waves at hectometric resolution from Ifremer (Episode 2)
Episode 2 – Illustrations
Forecasts IFREMER (see Episode 1) available in Weather4D are of two kinds :
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- Current forecasts from the MARS2D model
- Sea state forecasts (combined currents and waves) based on WW3 model
These files concern areas of the Channel and Atlantic whose coverage and resolutions are significantly different. Read more …
Currents and waves at hectometric resolution from Ifremer (Episode 1)
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 …
GRIB files and time zones
An incomprehensible malfunction occurred recently for a Weather4D user, sailing in a “lost hole” on the edge of the Indian Ocean, namely the Cocos Islands, challenged me to the point of getting lost in conjectures. A GFS file due ten days ago categorically refused to be displayed in the application with the date, damn !
This unfortunate sailor - for which I would like to thank him - forced me to make a determined search for the cause of the problem.. After much procrastination, explorations of settings that may be faulty, since no other user had reported such a problem to us, the light finally came out ! Read more …
Update Weather4D R&N 2.0.92 -New charts update
As part of the gradual conversion of raster charts to vector charts ENC (¹) on the platform Geogarage, Weather4D Routage & Navigation now includes the following ENC catalogs :
- Portugal (derived from the productions of the Portuguese Hydrographic Service – IH)
- Poland (derived from the productions of the Polish Hydrographic Service – HOPN)
- Australia (derived from the productions of the Australian Hydrographic Service – AHO)
These ENC catalogs are added to the previous ones already available (Spain, Croatia, Germany, Netherland). Others are under negotiation such as Greece and Sweden.
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(¹) Geogarage to introduce ENC charts for Weather4D
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