Doppler Weather Radar - METNET - India Meteorological Department

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D.2.4. Advantages of Present IMD DWR Scan strategy 1. Overlapping at the lower elevation scan to give a better derived product of Rainfall and low level wind shear. 2. Closer to VCP21 of NexRad Network, used to detect shallow precipitation It has ten elevation cuts enabling to perform scan within ten minutes. 3. Cone of silence minimized and less sparse to that of VCP21. 4. High temporal & spatial cover at lower levels – tracing widespread system better. 5. Suitable for generating a mosaic product (especially precipitation) if another radar is present within 200 – 400 km. Figure D.8. Cone of Silence 50.0 km around the radar center Figure D.9. Scan implemented in most of the IMD DWRs 84
Chennai@8min, Machilipatnam, Vishakapatnam@8min, Kolkata@13min Exceptions: DWR Delhi-Palam and DWR Hyderabad@10min Figure D.10. Cone of Silence in Palam-<strong>Radar</strong> Figure D.11. Cone of silence - Palam <strong>Radar</strong> Enlarged view 85
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Ministry of Earth Sciences INDIA ME
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Preface Introduction Definitions Pu
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3.8 To copy RAW DATA 35 3.9 Procedu
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B.3.3 Velocity Products 69 B.3.4 Hy
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PREFACE India Meteorological Depart
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DEFINITION An important aspect of a
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MONITORING OF DWR SYSTEM CHAPTER 1
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Before controlling radar operations
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5. Power Cabinet: “SERVO POWER AM
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9. Checking real time displays:-The
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2. In Modem, PMA always shows off w
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This can be done by “telnet” co
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drwxr-xr-x 3 501 500 4096 Aug 10 02
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Figure 1.8 Connecting to MAIN serve
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Thus now the tasks are configured a
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STEP 1 : Invoke “iris” though t
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STEP 6 : Skip time : This is the ti
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3. Edit the Product as needed , the
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(ii) SC. (E) In-Charge Radar Lab, D
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Station and print-out (except Daily
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2.2.5. A-log book Details of all ad
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Table 2.8 VPN connectivity status S
Page 45 and 46: Step-II. connected Copy image files
Page 47 and 48: 3.7. To search for a file [operator
Page 49 and 50: PCO name: IMD-B, TCO name: IMD-B PR
Page 51 and 52: # Filename: transmet_gif # Sends fi
Page 53 and 54: 9. To liaise with other DWR station
Page 55 and 56: • Detection of deterioration caus
Page 57 and 58: ack-mounted modules which do not re
Page 59 and 60: Screenshot 2 : Calibration Control
Page 61 and 62: Antenna Waveguide Switch, Circulato
Page 63 and 64: 4.3.3 Bitex data point configuratio
Page 65 and 66: APPENDIX A AN OVERVIEW OF DOPPLER W
Page 67 and 68: A.1.1. Future IMD Radar Network pla
Page 69 and 70: IRIS/Display Installed at remote wo
Page 71 and 72: APPENDIX B WSR 98D/S DWR SYSTEM CHA
Page 73 and 74: e. Elevation limits -- Upper and lo
Page 75 and 76: B.1.9. Calibrations and health moni
Page 77 and 78: B.2.6. Unambiguous range a. Reflect
Page 79 and 80: The System is capable of generating
Page 81 and 82: 1. System generates hail, thunderst
Page 83 and 84: 1.5. There is provision of DVD Writ
Page 85 and 86: 6. Wait for ten minutes. Calibrate
Page 87 and 88: SA9-15 Current at position 15 of A1
Page 89 and 90: Test procedure (1) Type the “zaut
Page 91 and 92: 4. Observe that the PFN voltage goe
Page 93 and 94: Table D.1. PPI and RHI scanning typ
Page 95: According to the need of IMD, purpo
Page 99 and 100: D.2.5. Scan strategies being follow
Page 101 and 102: High Voltage (Power On) Avoid conta
Page 103 and 104: Average power densities less than 5
Page 105 and 106: E.3. Antenna/Pedestal Safety WARNIN
Page 107 and 108: ACKNOWLEDGEMENTS Several experts ha
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