NATS 1780 A (Summer 2020): Cloud Classification Lab - Version 0.

NATS 1780 A (Summer 2020): Cloud Classification Lab - Version 0.5 - May 13, 2020 Abercromby and Hildebrandsson’s scheme classifies clouds into ten forms; with practice, it is possible to differentiate between these forms. You are required to photograph clouds that are representative of six of the total of ten forms, subject to the following constraints: 1. You must have taken these pictures, and you must be able to prove this. Use of the same photograph by more than one student, or use of a photograph that you cannot prove to be your own (e.g., one obtained via the Internet), will be considered an inappropriate display of academic integrity. The consequences of such inappropriate displays of academic integrity can be quite serious. 2. Along with the picture, you must be able to provide the weather conditions (please see Table 1 below) for the day the picture was taken, as well as the classification of the cloud you photographed. (A screenshot from a weather app, at the time and place where you took your photograph, would be ideal!) 3. All digital photographs must be capable of supplying a date - either directly on the photograph itself or indirectly via the photograph’s metadata. (Metadata is data about data. In this case, it is possible to extract data about a digital photograph that states items such as the date, camera make and model, etc. You are not required to submit metadata for your photographs.) 4. All photographs must convey a sense of perspective (e.g., include building, tree, field, etc.) to allow for size and distance approximations. 5. You may substitute for one or two cloud forms with pictures that capture optical effects in Earth’s atmosphere. Examples include rainbows, sundogs, halos, mirages, etc. Anything related to the content in the section on “Atmospheric Optics” is acceptable. Pollution-induced optical effects are also acceptable - anything related to the content in the section on “Air Pollution” is acceptable. Picture # Cloud Classification Date of Photograph Location of Photograph (including Elevation) Temperature & Dew Point Cloud Base Estimate (Relative to MSL) General Weather Conditions Identifying Features Used to Classify the Cloud Table 1. Observational data required in support of each picture depicting a separate cloud for classification. Cloud base estimates can be derived by following the instructions at https://en.wikipedia.org/wiki/Cloud_base#Measurement.