eastern region oil spill disaster contingency plan - Indian Coast Guard
eastern region oil spill disaster contingency plan - Indian Coast Guard eastern region oil spill disaster contingency plan - Indian Coast Guard
- 84 - with passage of weather systems approaching from the west. These weather systems are known as western Disturbances (WDs) and are noticed on synoptic charts as low level cyclonic circulation’s Through, Low Pressure areas or Depressions and induced systems there of. These systems given rainfall all along their tracks followed by cold wave conditions at the rear of them Usually 2 to 3 Western Disturbances are expected in each of the winter months and affect the weather of North Bay off West Bengal and Orissa Coast. 6. Currents Off Orissa, Andhra Pradesh and Tamil Nadu Coast: In the open parts of Bay of Bengal surface water currents flow 15 to 30 deg to the right of the prevailing winds. These currents get modified as they approach the East Coast of India. A clock wise gradient usually found over West central and Northwest Bay. The currents off north AP and Orissa / west Bengal Coasts are directed NE wards and their speed is of the order of ¼ kt. In the East Central bay the currents are mainly directed towards SSWly and the speed is about 1/4kt. South of 15 deg north, the mean surface current in the open sea is directed towards the extreme parts of the South Bay. However near to the remaining part of East Coast of India and east coast of Sri Lanka, the currents are directed from N – NE to S-SW direction. February 7. General. February is the last month of winter season. Basic conditions remain the same as in January. The low level circulation over the central parts of country during the month of February is 5 is anti cyclonic because of which dry weather and low temperatures continue to prevail over most parts of land and sea areas of the region. However equally weather accompanied by thunder activity is often observed over the southern parts of South Bay and Southern Andaman Sea. At times the weather over these parts deteriorate due to passage of waves in eastern lies which move from east to west over the low latitudes, giving rise to rainfall activity over coastal Tamil Nadu coastal Srilanka, South Bay and South Andaman Sea. The general fine weather over the North Bay and adjoining coastal areas is replaced at times, with passage of Western Disturbances resulting in rainfall activity. The average surface winds are mainly NE-ENE Ly / 10-15 Kts over Central Bay and South Bay and NW-N Ly /05-10 kts over North Bay. Accordingly the state of sea is normally between calm to slight visibility is generally good in afternoon and evening hours. However it may reduce to 3000 M or less in morning haze / fog along the coast. The ocean
- 85 - surface currents over the Bay of Bengal of Bengal remain the same as that of month of January. 8. Cyclonic Storms and Depressions. The Arabian sea is practically free from tropical storms in this month. In Bay of Bengal they are very few. They usually originate between latitude 5 deg to 9 deg North and west of longitude 92 deg East during the winter season. The frequency of formation of Cyclone and Depression per year is 0.04. These systems initially move NW-Nly direction and cross the Tamil Nadu or East Coast of Srilanka. However, on some occasions after initial movement they may recurve and move in N-NNEly direction and strike the Arakkan Coast. March 9. General. The month of March, April and May constitute the premonsoon season also called as Hot weather period. The main synoptic features that are generally observed during these months, with a special reference to coastal areas are given in the succeeding paragraphs. 10. Synoptic Features. During the month of March, a Heat low establishes itself over the southern peninsula as a result of heating of the interior landmasses. The heat low is shallow with no well-defined upper air circulation. It is well marked only during the afternoon / evening hours. 11. Pressure Pattern. The pressure gradient over the entire country is slack. The pressures are however slightly higher over Indian sea areas. The center of high pressure cells, during the month lies at about 18 Deg North / 60 Deg East in the Arabian sea and 16 Deg North / 90 Deg East in the Bay of Bengal. 12. Wind Discontinuity: In association with the high pressure cells over Arabian sea of Bay of Bengal, a North –South wind discontinuity line develops over the central parts of India with N/NWly winds on one side and S/SEly wind on the other side. It normally joins with another discontinuity line is potential area of thunderstorm / thunders activity. 13. Land and Sea Breeze. Since the pressure gradient over the country is slack during March and sea breezes become pronounce in the coastal areas, particularly in the late afternoon hours. 14. Thunder Storms. During the Hot Water Period extensive connective activities occur causing thunderstorms hailstorms and dust storms, on days having favorable synoptic situation. In general, thunder activity starts by March
- Page 33 and 34: - 33 - Oil Spill Exercise Documenta
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- Page 37 and 38: - 37 - ship or aircraft, since ther
- Page 39 and 40: - 39 - (f) Ensure availability of O
- Page 41 and 42: - 41 - 2.18. The OSC is to project
- Page 43 and 44: - 43 - response operation is to be
- Page 45 and 46: - 45 - Stretches 8 miles in lengths
- Page 47 and 48: - 47 - 2.46. Haldia is a major port
- Page 49 and 50: - 49 - (ii) Mangroves at Pirchavara
- Page 51 and 52: - 51 - POL REP MESSAGES FORMAT Refe
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- Page 55 and 56: - 55 - Area of Responsibility 3. Oi
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- Page 59 and 60: - 59 -
- Page 61 and 62: - 61 - ANNEX - 5 COMMUNICATION PLAN
- Page 63 and 64: - 63 - C P C L Nagapattinam STD Cod
- Page 65 and 66: - 65 - (Rajahmundry) Fax 0883-24277
- Page 67 and 68: - 67 - Annex - 6 DETAILS OF OIL POL
- Page 69 and 70: - 69 - 09 Wheel barrow 10 Nos 10 Ra
- Page 71 and 72: - 71 - 07 Liquid splits 400 lts 08
- Page 73 and 74: - 73 - 02 Sand Bag 10 Nos 03 Scoops
- Page 75 and 76: - 75 - Pollution response equipment
- Page 77 and 78: - 77 -
- Page 79 and 80: - 79 - case may be, off-shore insta
- Page 81 and 82: - 81 - 20. Inform following local a
- Page 83: - 83 - CHAPTER III Annex-8 SYNOPTIC
- Page 87 and 88: - 87 - However in the last 20 years
- Page 89 and 90: - 89 - the wind speed may reach to
- Page 91 and 92: - 91 - maximum temperature is 6ْ D
- Page 93 and 94: - 93 - (ii) The pressure over most
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- Page 101 and 102: - 101 - Figure-2 TRACKS OF STORMS /
- Page 103 and 104: - 103 - Figure-4 TRACKS OF STORMS /
- Page 105 and 106: - 105 - Figure-6 TRACKS OF STORMS /
- Page 107 and 108: - 107 - Figure-7 TRACKS OF STORMS /
- Page 109 and 110: - 109 - Figure-9 TRACKS OF STORMS /
- Page 111 and 112: - 111 - Figure-11 MEAN SEA LEVEL PR
- Page 113 and 114: - 113 - Figure-13 MEAN SEA LEVEL PR
- Page 115 and 116: - 115 - Figure-15 MEAN SEA SURFACE
- Page 117 and 118: - 117 - Figure-17 MEAN SEA SURFACE
- Page 119 and 120: - 119 - Figure-19 SEA STATE ANALYSI
- Page 121 and 122: - 121 - Figure-21 SEA STATE ANALYSI
- Page 123 and 124: - 123 - Figure-23 SEA STATE ANALYSI
- Page 125 and 126: - 125 - Figure-25 SEA STATE ANALYSI
- Page 127 and 128: - 127 - Figure-27 SEA STATE ANALYSI
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- Page 131 and 132: - 131 - Figure-31 VECTOR - MEAN CUR
- Page 133 and 134: - 133 - Figure-33 VECTOR - MEAN CUR
- 85 -<br />
surface currents over the Bay of Bengal of Bengal remain the same as that of<br />
month of January.<br />
8. Cyclonic Storms and Depressions. The Arabian sea is practically free<br />
from tropical storms in this month. In Bay of Bengal they are very few. They<br />
usually originate between latitude 5 deg to 9 deg North and west of longitude 92<br />
deg East during the winter season. The frequency of formation of Cyclone and<br />
Depression per year is 0.04. These systems initially move NW-Nly direction and<br />
cross the Tamil Nadu or East <strong>Coast</strong> of Srilanka. However, on some occasions<br />
after initial movement they may recurve and move in N-NNEly direction and<br />
strike the Arakkan <strong>Coast</strong>.<br />
March<br />
9. General. The month of March, April and May constitute the premonsoon<br />
season also called as Hot weather period. The main synoptic features<br />
that are generally observed during these months, with a special reference to<br />
coastal areas are given in the succeeding paragraphs.<br />
10. Synoptic Features. During the month of March, a Heat low establishes<br />
itself over the southern peninsula as a result of heating of the interior<br />
landmasses. The heat low is shallow with no well-defined upper air circulation. It<br />
is well marked only during the afternoon / evening hours.<br />
11. Pressure Pattern. The pressure gradient over the entire country is<br />
slack. The pressures are however slightly higher over <strong>Indian</strong> sea areas. The<br />
center of high pressure cells, during the month lies at about 18 Deg North / 60<br />
Deg East in the Arabian sea and 16 Deg North / 90 Deg East in the Bay of<br />
Bengal.<br />
12. Wind Discontinuity: In association with the high pressure cells over<br />
Arabian sea of Bay of Bengal, a North –South wind discontinuity line develops<br />
over the central parts of India with N/NWly winds on one side and S/SEly wind<br />
on the other side. It normally joins with another discontinuity line is potential<br />
area of thunderstorm / thunders activity.<br />
13. Land and Sea Breeze. Since the pressure gradient over the country is<br />
slack during March and sea breezes become pronounce in the coastal areas,<br />
particularly in the late afternoon hours.<br />
14. Thunder Storms. During the Hot Water Period extensive connective<br />
activities occur causing thunderstorms hailstorms and dust storms, on days<br />
having favorable synoptic situation. In general, thunder activity starts by March
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