Bureau of Meteorology GOES-9 AMVs Generation and Assimilation Bureau of Meteorology GOES-9 AMVs Generation and Assimilation

GMS ‑ 5 channels GMS ‑ 5 channels ChannelWavelength IDRangeResolution VIS µm1.25 km IR µm5 km IR µm5 km IR µm5 km

GOES-9 IMAGER

Imager Instrument Characteristics (GOES I-M) Channel number: 1 (Visible)2 (Shortwave)3 (Moisture)4 (IR 1)5 (IR 2) Wavelength range (um) Instantaneo us Geographic Field of View (IGFOV) at nadir 1 km4 km8 km4 km Radiometric calibration Space and 290 K infrared internal backbody Calibration frequency Space: 2.2 sec (full disc), 9.2 or 36.6 sec (sector/area) Infrared: 30 minutes typical System absolute accuracy IR channels: less than or equal to 1 K Visible channel: 5% of maximum scene irradiance Imaging rateFull earth disc, less than or equal to 26 minutes

TRANSITION PLAN FROM GMS-5 TO MTSAT/EO-3 Eo-3/GIFTS GOES-9

ATMOSPHERIC MOTION VECTORS Image Navigation Target Selection Target Tracking Height Assignment Quality Control and Error Estimation

Bureau of Meteorology GOES-9 Ch.4 AMVs Features tracked in Ch.4 images Height assignment High lvl using Ch.4/Ch.3, low lvl Ch.4 cld base. Assimilation RT in LAPS375 (June 2003 – 30 cases). Bureau of Meteorology GOES-9 Ch.4 AMVs Features tracked in Ch.4 images Height assignment High lvl using Ch.4/Ch.3, low lvl Ch.4 cld base. Assimilation RT in LAPS375 (June 2003 – 30 cases).

Table 1 Real time schedule for GOES ‑ 9 Atmospheric Motion Vectors at the Bureau of MeteorologySub ‑ satellite image resolution, frequency and time of wind extraction and separations of the image triplets used for wind generation (ΔT) are indicated. Wind TypeResolutionFrequency-Times (UTC)Triplet (ΔT) Real Time IR 4 km 6 ‑ hourly – 05, 11, 17,23 36 minutes Real Time IR (hourly)4 kmHourly 00, 01, 02,.., 23 1 hour

Table 1 Mean Magnitude of Vector Difference (MMVD) between GOES ‑ 9 AMVs and radiosondes winds within 150 km in the Australian Region for 9 June to 30 June 2003 GOES ‑ 9 No. ObsMMVD (ms -1 ) Low 950 – 700 hPa Middle 699 – 400 hPa High 399 – 150 hPa

Quality Control Oper1 (ERR) Correlation between images U acceleration V acceleration U deviation from first guess V deviation from first guess Cloud height check

Quality Indicator (QI) Direction consistency (pair) Speed consistency (pair) Vector consistency (pair) Spatial Consistency Forecast Consistency QI = ∑w i.QV i /∑w i

EE provides RMS Error (RMS) Estimated from U acceleration V acceleration U deviation from first guess V deviation from first guess Shear Speed…

Recursive Filter Flag (RFF : 0 – 100) Determined by final fit of vector to recursive filter analysis

NASA NOAA Navy and BoM Partnership GIFTS/IOMI Enables Improved Global Weather Prediction Inter-Agency/International Cooperation Bureau of Meteorology AustraliaDepartment of Commerce/NOAADoD/Space Test Program Data to Naval Centers/ Fleet Demo Data to Naval Centers/ Fleet Demo Australian Ground Station & Data Processing Center Australian Ground Station & Data Processing Center Data to NOAA Centers Data to NOAA Centers Conus “2” Conus “1” Indian Ocean “3”

Global Disk Imaging: 422 Steps Spectral Resolution: 36cm -1 Sounding Regional: 144 Steps Spectral Resolution: 0.6cm -1 Low Noise Sounding: 36 Steps Spectral Resolution: 0.6cm -1 Global Disk Sounding: 360 Steps Spectral Resolution: 18cm -1 GIFTS Allows The Trade of Coverage & Spectral Resolution < 1 Hr < 1/2 Hr (imagery < 5 min) < 1/2 Hr < 10 Min

NAST-I Demonstration of GIFTS Water Vapor Feature Sensitivity 300 Mb500 Mb850 Mb CART-Site

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