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Candidates should hold GCSE or equivalent in Mathematics and English and have previous secretarial / clerical experience , preferably within a Higher Education environment . Such definitions , however , require weather data on hourly , daily , monthly , or other time scales and , possibly , impact data ( e.g ., crop yield ) , depending on the nature of the definition being applied . This schedule includes all requests for reasonable accommodation and / or assistive technology devices and services offered through the agency or the Computer / Electronic Accommodation Program ( CAP ) that are made by or on behalf of applicants , current or former employees . Bachelor 's degree in an environmental science field with at least four years of relevant work experience , or , Master 's degree in an environmental science or marine policy field and at least two years of relevant work experience . Data can be converted to indices or annual percent change and charts can be created .