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Challenge ID |
C-C= ORE_OFF1.3 |
Title |
|
Challenge originator: |
&nb= sp; |
<= p style=3D"margin-top:0pt; margin-bottom:0pt; text-align:center; font-size:= 10pt">General Descrip= tion | <= p style=3D"margin-top:0pt; margin-bottom:0pt; font-size:10pt"> |
What data/products do you use? |
His=
torical ocean surface currents data are available via different agencies. T=
hey are either based on reanalysis, hindcast model data or derived from sat=
ellite observations. Data from regional models: Mediterranean Sea: MEDSEA (MyOcean)=
span> Global geosptrophic curr= ents from NOAA: derived from sea surface height, wind speed and sea surface= temperature satellite observations |
When do you use this kind of dataset? |
His=
torical ocean surface current data are used to great extent in all phases t=
hroughout the O&G cycle, except strictly operational tasks.
|
What are your actual limitations and do y= ou have a work around? |
Sam=
e as for wind and wave, only that data of sufficient quality is rare. Most =
of this is due to the limited access to observations, and if accessible ava=
ilable update frequency, quality and resolution is normally poor. Little da=
ta is available to sufficiently ground truth EO data. In addition data of s=
ufficient quality can be hard to come by in coastal and remote/less develop=
ed areas. Modelled data has low quality for on shorter time scales, while c=
limatology is of sufficient quality. These data rarely catch short lived an=
d small scale extremes. Update frequency: |
Needs and expectations on EO data<= /p> |
EO =
is used for this today, but resolution, update frequency, length of data se=
ries and quality is not sufficient for instance design studies. It is used =
as input in regional reanalysis and hindcast. |
<= p style=3D"margin-top:0pt; margin-bottom:0pt; text-align:center; font-size:= 10pt">Challenge class= ification | <= p style=3D"margin-top:0pt; margin-bottom:0pt; font-size:10pt"> |
Pre license |
3= span> |
Exp. |
4= span> |
Dev. |
4= span> |
Prod. |
3= span> |
Decom. |
3= span> |
Geographic context/ restrictions= p> |
App=
lies to all six areas of interest, except for the cautionary notes about tr=
opical cyclones, which only applies to South China Sea, West of Ireland, an=
d Myanmar. |
Topographic classification / Offshore cla= ssification |
Oce= an |
Activity impacted/concerned | &nb= sp; |
Technology Urgency |
Sho= rt term (2-5 years) |
<= p style=3D"margin-top:0pt; margin-bottom:0pt; text-align:center; font-size:= 10pt">Information req= uirements | <= p style=3D"margin-top:0pt; margin-bottom:0pt; font-size:10pt"> |
Update frequency |
Dai=
ly or weekly, since historical data is frequently required to assess recent=
events. For some parameters and data sets, monthly is still sufficient. =
span> |
Temporal resolution |
Dat=
a should be at least 1-3 hourly resolution depending on area and phenomena =
needed to be resolved. |
Spatial resolution |
Aro=
und 4 km, maybe less in coastal areas. |
Data quality |
The=
selected sources in this document are selected because they are known to h=
ave sufficient quality (after some work-around/adaptation). In general sepa=
rate in-depth verification studies has to be made for each source planned t=
o be used for analysis, and the analysis has to be repeated for each geogra=
phical area (since sources might be of sufficient quality in one area but n=
ot another). |
Data Coverage and extent |
Reg= ional |
Example format |
CS= V and/or netCDF |
Timeliness |
Nor= mally needed urgently, possibly before assessing, planning, or exploring a = new field. Hence the data source used for analysis needs to be frequently u= pdated to avoid unnecessary waiting. Daily, weekly or monthly updates of da= ta sets are sufficient, depending on the analysis required. |
Existing standards |
&nb= sp; |
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