默认的意思是什么“有效”NOAA气象地图吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换

默认的意思是什么“有效”NOAA气象地图吗?

2018 - 10 - 28 - t00:49:28z

NOAA气象预报地图通常包括一个有效的时间段,e。旅客:“从time1 thru time2有效。”However, many maps only indicate a single time, e.g: "valid time1." In the absence of other information, does this typically (or officially) mean valid up until time1, or valid after time1?

EDIT: Link to example map and source

Bollehenk回答的默认的意思是什么“有效”NOAA气象地图吗?

2018 - 10 - 29 - t07:30:25z

简短回答:< >强有效的< / >强只是意味着,某些时候预期的条件。

In your example the map shows a forecast of 00 hours which is valid for 0600 UTC. Basically it means that the forecast/simulation is initialized on 0600 UTC and because the forecast time is 00 hours this forecast is also valid for 0600 UTC.

NOAA also provides forecasts for several hours (or days depending on the product). In this case, your simulation may be initialized on 0600 UTC but if you want to see what the conditions on 1500 UTC are you have a forecast of 09 hours which is valid for 1500 UTC. See this example.

吉米回答的是默认的“有效”的含义在NOAA气象地图吗?

2018 - 11 - 26 - t17:30:34z

因为天气问题是引用一个航空产品(链接不再功能),有一个上下文的答案。飞机的飞机调度程序必须按照联邦航空局规定飞行计划,其中一些适用于天气信息。只有特定的天气观测和预报产品授权的来源,和“有效”时期也必须考虑。 如果我计划的航班将离开在1400 z,到达1755 z,我不是授权使用预测产品在00 z和有效发布1800 z。尽管这个预测产品发布之前,我开始计划飞行,因而可能是“最近发布的产品可用”,该产品是为一个特定的有效期限,即从1800年z向前。我需要参考不同的产品,是“有效的”我所乘坐的飞机航班,该在窗口。