[Seavox] Satellite instrument mapping

[Olivier Lauret]

-----Message d'origine-----
De : Olivier Lauret [mailto:olauret at cls.fr] 
Envoyé : lundi 3 décembre 2007 15:49
À : 'olivier lauret'
Cc : 'Frederique Blanc'
Objet : TR: Satellite instrument mapping



-----Message d'origine-----
De : Olivier Lauret [mailto:olauret at cls.fr] Envoyé : lundi 3 décembre 2007
15:46 À : 'Roy Lowry'
Cc : 'sdn-tech at ifremer.fr'
Objet : RE: Satellite instrument mapping

Hi Roy,

Find attached the spreadsheet with some adds (in red); my thoughts when
filling the table lead me to the following ideas:
- I introduced the possible L055 term "synthetic aperture radar" for ASAR
instrument; as ASAR can propose ocean parameters like surface currents, it
also give other usefull ocean information like waves. Maybe it would be
better to replace Seadatanet LO55 entry "surface current radars" by
"synthetic aperture radar", which is the appropriate term that cover both
applications.
- VIIRS is both an ocean colour sensor and infrared radiometer (sea surface
temperature). Thus two L055 entries are possible in such case.
- Seawinds instrument is a scatterometer, but some people also call it "
microwave radar", which corresponds to another L055 entry; this is a
question of people an vocabulary, I guess scientists use "scatterometer"
word as technical engineers sometimes say "microwave radiometer". As I
believe we are more on the scientist side - and so am I, "scatterometer" is
the term we must use. 
- Finally I noticed another aspect that could complicate our task in the
future: the fact is that we should have proceed this task in 4 steps, like
[EDIOS = RS platform] part of a [satellite mission], that has onboard the
[instruments listed], that belongs to one or more of the [L055 categories]. 
Actually the A column of present sheet mix 3 levels of detail in one term
(name of the instrument with the name of the mission with the type of
instrument), which can be a problem.. 
An example:
Topex/Poseidon mission had onboard to radar altimeters: TOPEX by NASA and
POSEIDON-1 by CNES, the one that is identified by "CNES Poseidon
Single-Frequency Solid-State Radar Altimeter (Ku-band)" in EDIOS.

Of course I know it is more complex and not really feasible at this stage -
too heavy, so I guess that is a good compromise between our planning and the
EDIOS and instruments vocabularies. But this is at least something we have
to keep in mind for some evolution of the Seadatanet vocabularies, don't we?

Cheers,

Olivier.




-----Message d'origine-----
De : Roy Lowry [mailto:rkl at bodc.ac.uk]
Envoyé : vendredi 30 novembre 2007 10:29 À : sdn-tech at ifremer.fr Objet :
Satellite instrument mapping

Dear Olivier (or anyone else who knows about satellite data),

Attached is an incomplete mapping between the instrument names classified in
EDIOS as 'satellite mounted instruments' and the remote sensor instrument
categories I've set up for L055.  Three questions.

1) Are the mappings I've done correct?
2) Can any of the unmapped instrument be mapped to existing instruments?
3) What new categories do we need to cover what is left after two?

Cheers, Roy.


--
This message (and any attachments) is for the recipient only. NERC is
subject to the Freedom of Information Act 2000 and the contents of this
email and any reply you make may be disclosed by NERC unless it is exempt
from release under the Act. Any material supplied to NERC may be stored in
an electronic records management system.



                           Cliquez sur l'url suivante
https://www.mailcontrol.com/sr/78xyBYeRrSPCo3RCR3wieruir4+IPJ!dQA1yP4H1BLD6x
1jdFqPfg0MEmQnE3csnuAkHXQViWW9qfgSjgx5vdzLmYNiuqo43sT+8BEocPfelQfbOJnEc5
1jdFqPfg0MEmQnE3csnuAkHXQViWW9qfgSjgx5vdzLmYNiuqo43sT+xrtr
!5k9i!hTDYerlx0b4bcEp5UYKMTU2rIXIpo4nyDzd9RBlstxIWuQHS6KOJhnVlBolEW4he4sUy+g
JyZNGR9kMFUc0QpsA1bJDV!Wn6a  
                    si ce message est indésirable (pourriel).
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Satellite_Mapping_OL.xls
Type: application/vnd.ms-excel
Size: 25088 bytes
Desc: not available
Url : http://mailman.nerc-liv.ac.uk/pipermail/seavox/attachments/20071203/6e56cccb/attachment-0001.xls