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Challenge ID |
C-C= ORE_OFF1.5 |
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? |
Rea=
l-time and near real-time surface-based observations of 10m wind speeds fro=
m ships and buoys are available from many sources including NOAA (NWSTG), N=
OAA (MADIS), NOAA (NDBC), UCAR, and numerous other data distribution center=
s. |
When do you use this kind of dataset? |
The=
se data are used to monitor all day-to-day operations when drilling, survey=
ing etc. To assess current conditions, nowcasting, assess the quality forec=
ast models and plan ahead. Find windows of operability where thresholds app=
ly etc. |
What are your actual limitations and do y= ou have a work around? |
The=
re are spatial and temporal limitations of real-time and near real-time sur=
face-based and remotely-sensed 10m wind observations. The observation heigh=
ts and averaging periods of wind observations are variables that must be re=
conciled across all record sets prior to analyses. Which means: Data are of=
ten not on location. Sensors are too high, shielded, measurements averaged,=
in wrong formats etc. |
Needs and expectations on EO data<= /p> |
EO =
is used for this today, but resolution, update frequency and quality is not=
always sufficient. Mostly used as assimilation into models. More severe si=
tuations (se hurricanes, squalls etc.) can be detected using these data rea=
l time, however the use for point forecasting is limited. |
<= 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 |
2= span> |
Exp. |
4= span> |
Dev. |
3= span> |
Prod. |
4= 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 |
Rea=
l-time and near real-time. Hourly or 10 min. |
Temporal resolution |
Rea=
l-time and near real-time. Hourly or 10 min. |
Spatial resolution |
Obs=
ervation on location or around 4 km |
Data quality |
The=
selected sources in this document are selected because they are known to h=
ave sufficient quality (after some work arounds and adaptations). In genera=
l separate indepth verification studies has to be made for each source plan=
ned to be used for analysis, and the analysis has to be repeated for each g=
eographical area (since sources might be of sufficient quality in one area =
but not another). |
Data Coverage and extent |
Reg= ional and as localised as possible. |
Example format |
Sur=
face-bases observation: text, CSV and/or netCDF |
Timeliness |
Rea= l-time or near real-time. Forecasts are normally issued 2 to 4 times per da= y, but continuous monitoring of conditions is required. |
Existing standards |
Mul= tiple paragraphs in DNV-RP-C205, OTO 2001/010, ISO-19001-1, NORSOK-N-003e2,= and NORSOK-N-006u1 contain extensive references to the standard measures o= f the means of winds. |
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