Bureau of Meteorology GOES-9 AMVs
Generation and Assimilation
Bureau of Meteorology GOES-9 AMVs
Generation and Assimilation
GMS‑5 channels GMS‑5 channels
Channel WavelengthID Range Resolution
VIS 0.5 - 1.0 µm 1.25 km
IR1 10.2 - 11.4 µm 5 km
IR2 10.9 - 12.2 µm 5 km
IR3 6.7 - 7.2 µm 5 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)
0.55 - 0.75 3.80 - 4.00 6.50 - 7.00 10.20 - 11.20 11.50 - 12.50
Instantaneous Geographic Field of View (IGFOV) at nadir
1 km 4 km 8 km 4 km 4 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 KVisible channel: 5% of maximum scene irradiance
Imaging rate Full earth disc, less than or equal to 26 minutes
Smal l sector scan:Observati on of the northern hemi spherePAC9(9. 5mi n× 1) :Observati on of the rectangl e area around J APAN
Ful l Di sk (1W)
Ful l Di sk (2W)
Smal l sector scan(15mi n× 1)
Smal l sector scan(15mi n× 1)
Ful l Di sk
Ful l Di sk
Ful l Di sk (1W)
Ful l Di sk (2W)
Ful l Di sk
Ful l Di sk (3W)
PAC9(9. 5mi n× 1)
Smal l sector scan(15mi n× 1)
Ful l Di sk
Meteorol ogi cal Satel l i te Center, J MA 2003. 1. 22
Ful l Di sk
Ful l Di sk (3W)
Ful l Di sk
Ful l Di sk (2W)
Ful l Di sk (1W)
Ful l Di sk
Ful l Di sk
Ful l Di sk (3W)
Ful l Di sk
Ful l Di skPAC9(9. 5mi n× 1)
Smal l sector scan(15mi n× 1)
Ful l Di sk
10(19)
Ful l Di sk
Ful l Di sk
Smal l sector scan(15mi n× 1)
Smal l sector scan(15mi n× 1)
08(17)
04(13)
Smal l sector scan(15mi n× 1)
Smal l sector scan(15mi n× 1)
40 50 60
09(18)
0 10 20 30
06(15)
Ful l Di sk
UTC(J apan)
02(11)
07(16)
03(12)
05(14)
00(09)
01(10)
19(04)
23(08)
22(07)
21(06)
GOES-9 Observati on Schedul e
30 40 50 600 10 20
20(05)
18(03)
11(20)
15(00)
17(02)
13(22)
12(21)
16(01)
14(23)
Ful l Di sk
Ful l Di sk
Ful l Di sk (3W)
Ful l Di sk (1W)
PAC9(9. 5mi n× 1)
Smal l sector scan(15mi n× 1)
Smal l sector scan(15mi n× 1)
Ful l Di sk (2W)
Smal l sector scan(15mi n× 1)
Smal l sector scan(15mi n× 1)
Smal l sector scan(15mi n× 1)
TRANSITION PLAN FROM GMS-5 TO MTSAT/EO-3TRANSITION PLAN FROM GMS-5 TO MTSAT/EO-3
Eo-3/GIFTSEo-3/GIFTS
GOES-9GOES-9
ATMOSPHERIC MOTION VECTORS
Image Navigation
Target Selection
Target Tracking
Height Assignment
Quality Control and ErrorEstimation
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 Meteorology Sub‑satellite image resolution, frequency and time of wind extraction and separations of the image triplets used for wind generation (ΔT) are indicated.
Wind Type Resolution Frequency-Times (UTC) Triplet (ΔT)
Real Time IR 4 km 6‑hourly – 05, 11, 17,23 36 minutes
Real Time IR (hourly) 4 km Hourly 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. Obs MMVD (ms-1)
Low 950 – 700 hPa 431 3.64
Middle 699 – 400 hPa 82 4.00
High 399 – 150 hPa 1759 4.58
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 = ∑wi.QVi/∑wi
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
S1 Skill Score - OPS.v OPS.+WINDS
5
10
15
20
25
30
35
5 10 15 20 25 30 35
S1 - OPS
S1
- O
PS
+W
IND
S
Forecast No. v Skill Score Gain
-4-3-2-1012345
1 11 21 31 41 51 61 71 81 91 101 111 121131141 151 161171 181191201211221231241251261271281291
Forecast No.
Sk
ill S
co
re G
ain
S1 Skill Score gain
0
20
40
60
80
100
120
gain -3 -2 -1 0 1 2 3 4
Gain
Nu
mb
er
S1 Score v Pressure
200
300
400
500
600
700
800
900
1000
10 15 20 25 30
S1 Score
Pre
ss
ure
(m
b)
OpsW48
Ops
OpsW24
Ops
NASA NOAA Navy and BoM PartnershipGIFTS/IOMI Enables Improved Global Weather Prediction
Inter-Agency/International CooperationInter-Agency/International Cooperation
Bureau of Meteorology AustraliaDepartment of Commerce/NOAA DoD/Space Test Program
Data to NavalCenters/
Fleet Demo
Data to NavalCenters/
Fleet Demo
AustralianGround Station& Data ProcessingCenter
AustralianGround Station& Data ProcessingCenter
Data to NOAACentersData to NOAACenters
Conus “2”
Conus “1”
Indian Ocean “3”
Global Disk Imaging: 422 Steps
Spe
ctra
l Res
olut
ion:
36c
m-1
Sounding Regional: 144 Steps
Spe
ctra
l Res
olut
ion:
0.6
cm-1
Low Noise Sounding: 36 Steps
Spe
ctra
l Res
olut
ion:
0.6
cm-1
Global Disk Sounding: 360 Steps
Spe
ctra
l Res
olut
ion:
18c
m-1
GIFTS Allows The Trade ofGIFTS Allows The Trade of Coverage & Spectral Coverage & Spectral
ResolutionResolution
< 1 Hr < 1/2 Hr(imagery < 5 min)
< 1/2 Hr< 10 Min
NAST-I Demonstration of NAST-I Demonstration of GIFTSGIFTS
Water Vapor Feature Water Vapor Feature SensitivitySensitivity
300 Mb 500 Mb 850 Mb
CART-Site CART-Site CART-Site
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