30
Directorate of Oceanography and Meteorology Commander Andrew McCrindell Director Oceanography and Meteorology 12 March 2007 The Importance of Altimetry to the RAN
Directorate of Oceanography and Meteorology
Commander Andrew McCrindellDirector Oceanography and Meteorology
12 March 2007
The Importance of Altimetry to the RAN
Directorate of Oceanography and Meteorology
SCOPE
Why Navies need altimetry data; Climatological applications; Ocean modelling.
Directorate of Oceanography and Meteorology
Mission
To enable the ADF maritime community to exploit the above and below water physical operating
environments for strategic, operational and tactical advantage and for safety purposes, and to support the collection and effective management of marine
data in the national interest.
Directorate of Oceanography and Meteorology
Rapid Environmental Assessment
Directorate of Oceanography and MeteorologyCEMG METOC Impacts
SafetyLand
DARWIN
Land
Air Ops (RW/FW)
TOWNSVILLE
SafetySWBTA
Maritime
Safety
Land
Timeline (Hrs)
MaritimeAir Ops (RW/FW)
Air Ops (RW/FW)Maritime
No Impacts Marginal Impacts Significant Impacts
29 AUG
24 Hour
6 12 18 246 12 18 24
48 Hour 72 Hour 96 Hour
26 AUG 27 AUG 28 AUG
6 12 18 24 6 12 18 24
Directorate of Oceanography and Meteorology
REA METOC PERSPECTIVE
Generate forecasts in the littoral from T-7days. Make measurements to improve forecasts. Reliant on modelling capability and remote
sensing.
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
WWW.METOC.GOV.AU
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Satellite Data - Wind SpeedQuikscat microwave scatterometer on Quikbird (NASA) and Midori II (JSA)
+ Lat= 15.50 Long=115.50
Beaufort Direction
Scale N NE E SE S SW W NW Total
0 0 0 0 0 0 0 0 0 0
1 0 1 1 1 0 0 1 1 5
2 1 4 3 3 2 2 1 0 16
3 4 13 9 4 6 3 1 1 41
4 1 8 1 1 5 10 2 0 28
5 0 2 0 1 2 5 0 0 10
6 0 0 0 0 0 1 0 0 1
7 0 0 0 0 0 0 0 0 0
8 0 0 0 0 0 0 0 0 0
9 0 0 0 0 0 0 0 0 0
10 0 0 0 0 0 0 0 0 0
11 0 0 0 0 0 0 0 0 0
12 0 0 0 0 0 0 0 0 0
Total 6 28 14 10 15 21 5 2
Mean Speed = 10.7
Maximum Speed = 25.0
Direction of Maximum Speed 238
Number of records 2826
Directorate of Oceanography and Meteorology
Satellite Data – Sig. Wave HeightVarious altimeters: ERS1, ERS2, ENVISAT (ESA), GEOSAT, GFO (USN), TOPEX
POSEIDON, JASON (NOAA)
Lat , Long , Mean ,Max , Nobs,0-1m,1-2m,2-3m,3-4m,4-5m,>5m
15.50,115.50,1.15, 4.60, 1058, 48, 43, 7, 2, 0, 0
Directorate of Oceanography and Meteorology
Wave Modelling
• Uses
•global wave models
• a GIS application
• Coastal applications using altimetry could improve these forecasts.
Directorate of Oceanography and Meteorology
SONAR Prediction
Directorate of Oceanography and Meteorology
Project BLUE LINK - Oceanic & Atmospheric Modelling
$15 Million Project with 3 Partners:– Defence– CSIRO– Commonwealth Bureau of
Meteorology BLUElink> will deliver oceanic
forecasts for the Australian Region for:– Defence Applications– Climate Studies– Operational Weather Forecasting– Ecological Applications– Commercial Applications
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
10km resolution in this area
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
ROAM Oceanic Forecast Example
Example shows ROAM oceanic model over NW Shelf
Diagram shows 10km resolution, but will have 2km resolution
Output shows sea surface temperature and currents
Other outputs include 3-dimensional Temperature and Salinity structure
Directorate of Oceanography and Meteorology
A Slice of the Tasman Sea
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
GIS Visualisation – 3D View of Eddy
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Directorate of Oceanography and Meteorology
Concluding Remarks
Operational oceanography requires greater coverage Operational oceanography requires greater coverage and reliability of altimetry data.and reliability of altimetry data.
We need to use altimeters to derive oceanic structures We need to use altimeters to derive oceanic structures on the continental shelf and in coastal regions.on the continental shelf and in coastal regions.
The users do not always realise the importance of The users do not always realise the importance of altimetry because they are often using derived altimetry because they are often using derived products.products.
Thank you for all of the activities and research that Thank you for all of the activities and research that have contributed to our understanding of the world’s have contributed to our understanding of the world’s oceans.oceans.
