Locating river valley fog features: the importance of spatial resolution

August 30th, 2010 |
1-km resolution MODIS + 4-km resolution GOES-13 fog/stratus product images

1-km resolution MODIS + 4-km resolution GOES-13 fog/stratus product images

During the pre-dawn hours of 30 August 2010, AWIPS images of the 1-km resolution MODIS and the 4-km resolution GOES-13 fog/stratus product at around 07 UTC  (above) demonstrated the importance of spatial resolution in displaying the location of narrow fingers of river valley fog features across parts of the northeastern US.

About 2.5 hours later, a similar comparison between the 1-km resolution AVHRR and the 4-km resolution GOES-13 fog/stratus products (below) showed that the GOES-13 image was overwhelmed with a widespread “false fog/stratus signal” problem, which made the AVHRR image all the more valuable at that particular time.

1-km resolution AVHRR + 4-km resolution GOES-13 fog/stratus product images

1-km resolution AVHRR + 4-km resolution GOES-13 fog/stratus product images

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