2021_08_10_Lightning_Mapping_Array_VHF_antenna-7519 : 無料・フリー素材/写真
2021_08_10_Lightning_Mapping_Array_VHF_antenna-7519 / NOAA NSSL
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | VHF antenna on Lightning Mapping ArrayThe NOAA National Severe Storms Laboratory installed a full network of Lightning Mapping Array (LMA) sensors on portable, solar-powered platforms to study lightning in targeted areas. Just like the Oklahoma Lightning Mapping Array (OKLMA) jointly operated by NSSL with the University of Oklahoma, the portable array will be used to map the time and location of lightning channel segments within clouds in three dimensions with high resolution. To do this, the system measures the time at which a signal radiated by a lightning channel in a very high frequency (VHF) band (the television channel 3 band) arrives at each station in the network. The times are transmitted to a central server, which computes the time, latitude, longitude, and height of the segment that radiated the signal. |
| 撮影日 | 2021-08-09 18:38:29 |
| 撮影者 | NOAA NSSL |
| タグ | |
| 撮影地 | |
| カメラ | Canon EOS 5D Mark IV , Canon |
| 露出 | 1/2500 sec |
| 開放F値 | f/4.5 |
| 焦点距離 | 24 mm |