2 comments on “Review of 30 March 2017 Southwest Synoptic Dust Event with GOES-16

  1. With regards to: “First, we see the obvious improvement in resolution, 1 km vs 2 km. Because of this, and the increased sensitivity of the instrument (higher bit rate, meaning it can resolve finer features)”. For the 0.64 µm (ch 2 GOES16 vs. ch 1 GOES-15), it should be 0.5 km (that was fixed in AWIPSII – correct? vs. 1 km). That alone makes a HUGE difference in resolving finer features. Can you clarify the second sentence? To me, rate in the context you are talking about implies over time – which we can see the benefit of 5 minute vs 15 minute data. Do you mean bit depth – the number of bits of information in each pixel which is higher for GOES 16 than GOES-15? For this case, can you say that the narrower bandwidth on GOES-16 compared to GOES-15 also helps with distinguishing features?

    • From Paul Iniguez: Yes, I was incorrect with the resolution. It is 0.5 km against 1 km.

      As for rate, the “bit rate”, or bit depth, is the level of detail provided, specifically two raised to the provided bit depth power. For example, 8-bit is 2^8 which means 256 levels. Think of them as shades of gray. The bit depth on the GOES-13/15 is 10 (1,024 levels) while on GOES-16 it is 12 (4,096 levels). That means we have 4x the level of shading, allowing for finer features to be resolved. Such as the blowing dust.

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