Charts.

[Wansworth]

Pondering moving a boat from Vivero to Vigo discovered my old chart no 1755 pretty upto date 1978 .Foz to Camarinas. Shows all my workings for navigating this iron bound coast .Great detailed chat with chart,ets for small rias .Don’t suppose much has changed since then?……except me!……….and it’s been plastered with marinas

 

[awol]

Do check the datum - WGS84 post dates the chart.

 

[Wansworth]

Do check the datum - WGS84 post dates the chart.

I will be getting an upto date one or I will be admonished by the guardia civil ?

 

[AntarcticPilot]

Do check the datum - WGS84 post dates the chart.

And pre-WGS84 datums often differ from WGS84 by distances on the order of 100m.

 

[awol]

And pre-WGS84 datums often differ from WGS84 by distances on the order of 100m.

"Datums" ????????????????????

 

[AntarcticPilot]

"Datums" ????????????????????

Yes, "datums". This isn't the same word as "data", which of course is a plural noun anyway, for which the singular is "datum". However, "datum" in this context means "the framework within which measurements are made", NOT "a single measurement". Despite the identical spelling of the singular form, they are actually regarded as two different words and have different plural forms. Even my EXCEEDINGLY pedantic former boss accepted this distinction, and she certainly wouldn't have allowed me to use "data" as a singular noun! The distinction commonly arose in my work as a scientist working with geographic information.

 

[awol]

Yes, "datums". This isn't the same word as "data", which of course is a plural noun anyway, for which the singular is "datum". However, "datum" in this context means "the framework within which measurements are made", NOT "a single measurement". Despite the identical spelling of the singular form, they are actually regarded as two different words and have different plural forms. Even my EXCEEDINGLY pedantic former boss accepted this distinction, and she certainly wouldn't have allowed me to use "data" as a singular noun! The distinction commonly arose in my work as a scientist working with geographic information.

Sorry I asked!

 

[capnsensible]

Pondering moving a boat from Vivero to Vigo discovered my old chart no 1755 pretty upto date 1978 .Foz to Camarinas. Shows all my workings for navigating this iron bound coast .Great detailed chat with chart,ets for small rias .Don’t suppose much has changed since then?……except me!……….and it’s been plastered with marinas

The Imray pilot is brill.

 

[AntarcticPilot]

Sorry I asked!

I earn my marina fees by correcting academic manuscripts written by authors whose first language isn't English.

 

[newtothis]

I earn my marina fees by correcting academic manuscripts written by authors whose first language isn't English.

I've had enough trouble correcting academics whose first language is English.

 

[AntarcticPilot]

I've had enough trouble correcting academics whose first language is English.

I learnt the trade doing that! I was responsible for checking manuscripts being submitted by junior staff.