
Validation of GOME total ozone above Bremen (53°N, 9☎) in 1997. The spatial resolution of the PMDs is sufficient to recognize the Nile River bed. For each ground pixel 16 PMD readings having a surface pixel resolution of 40 × 20 km 2 are recorded. One across-track swath of GOME with the west, nadir, and east ground pixels (forward scan) each covering a surface area of 40 × 320 km 2 and color-coded in red, yellow, and green is shown in the center orbit. The three PMDs with broadband coverage of GOME channels 2 (blue), 3 (green), and 4 (red), respectively, are color mixed to obtain this image. RGB image of North Africa and Europe produced from the PMD measurements. The fractional cloud cover as determined from the O 2 (A) band absorption was zero for the clear-sky scene and one for the cloud scene (see appendix B). Here, I denotes the earthshine radiance, F the solar irradiance, and μ the cosine of the solar zenith angle. The two spectra were recorded in September 1995 over the North Atlantic Ocean. Sun-normalized earthshine spectra or spectral reflectivity. Not shown is an additional mirror, which directs the lamp light to the solar diffuser plate for diffuser reflectivity monitoring. Attached to the spectrometer is a calibration unit housing a Pt/Cr/Ne hollow cathode discharge lamp and the fore optics for solar viewing. The GOME instrument is a four-channel spectrometer. It’s not quite AI but we expect more of these types of tools in the near future.Schematic instrumental setup of GOME. Visualisation tools are great when you know what you’re looking at, so LEVELS is a welcome addition for less experienced producers or those who are working in a less than ideal listening environment. It’s not exactly stepping in and doing the work for you, but it’s enough to help those who may be new to production understand when enough is enough. Using four categories – headroom, stereo field, dynamic range and bass space – LEVELS measures the incoming signal and by sticking to industry standards and best mix practice, alerts the user when their signal (ideally the mix buss) is exceeding certain levels.įor example, exceed -6dB and the headroom icon will glow red or add too much stereo width that could cause phase issues and the stereo icon glows.

We’re not quite there yet, but LEVELS from Mastering the Mix is designed as a simple graphical representation of any signal being fed into it with one important difference – it intervenes when it ‘thinks’ you’re going too far.
