巴拿马运河6月以来四度下调船舶最大装载吃水 现行47.5英尺且未设截止日期
据 La Caribeña News 10月18日梳理巴拿马运河管理局（ACP）通告报道，运河管理局自今年6月以来已四次下调船舶最大装载吃水，现行上限为47.5英尺，自9月3日起执行，且未附截止日期。相关通告为运河管理局发布的 A-18、A-22、A-23、A-24 与 A-25 号航运通告，刊于管理局官网 pancanal.com。
装载吃水指船舶满载时船体没入水中的深度，上限下调意味着经过运河的船舶须减载通过。报道说，管理局称这些措施属预防性安排，并未表示其水库水量不足。
巴拿马运河连接大西洋与太平洋，是全球贸易的主要通道之一，吃水限制直接影响集装箱船、散货船的单航次装载量与航运公司的排班。后续是否再调整，取决于旱季降水与加通湖等水库水位的变化。
Panama Canal Has Cut Maximum Loading Draft Four Times Since June; 47.5 Feet Now in Force With No End Date
Panama Canal Authority (ACP) advisories show the canal has cut its maximum loading draft four times since June, La Caribeña News reported on October 18 after reviewing the notices. The current limit is 47.5 feet, in force since September 3 with no end date attached. The measures were issued as Advisories to Shipping A-18, A-22, A-23, A-24 and A-25, published on the authority's website, pancanal.com.
Loading draft is the depth to which a loaded ship sits in the water; a lower limit means vessels must lighten their loads to transit. The authority calls the measures proactive and has not said its reservoirs are short of water, the report said.
The Panama Canal links the Atlantic and Pacific and is one of the world's main trade arteries, so draft limits directly affect how much container and bulk ships can carry per transit and how carriers schedule sailings. Any further change will depend on dry-season rainfall and water levels in reservoirs such as Gatun Lake.
来源：GSM·美国（原文链接）
图片来源：图：船舶通过巴拿马运河船闸。来源：Wikimedia Commons，CC BY-SA 4.0 / Photo: A vessel transiting a Panama Canal lock. Source: Wikimedia Commons, CC BY-SA 4.0
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