hour of UNPAID sick time for every 30 hours of work performed by the employee within the. geographic boundaries of the City of Portland. âºAn employee may earn up to 40 hours of sick time per leave year unless allowed more by the. employer. âº An employee may use accrued sick time: ï· To cover all or part of a shift. ï· In increments of one hour, unless a lesser time is allowed by the employer or it is physically.
atmospheric pressure. noun, Meteorology. 1. the pressure exerted by the earth's atmosphere at any given point, being the product of the mass of the atmospheric column of the unit area above the given point and of the gravitational acceleration at the given point.
Pressure is not a fixed value; rather, it varies with environmental factors, such as altitude and temperature. Atmospheric pressure is also known as barometric pressure or air pressure. Simply put, it is a force exerted by the weight of the atmosphere pushing down on a given area. The standard pressure on earth at sea level is 101.325 kPa by definition. However, different climatic conditions will change the air pressure of different regions. Temperature changes will cause changes in air pressure.