A huge body of air that has similar temperature, humidity, and air. pressure at any given height is called an. air mass. Scientists classify air. masses according to temperature and humidity. Four major types of air. masses inï¬uence the weather in North America: maritime tropical, continental tropical, maritime polar, and continental polar. Tropical, or. warm, air masses form in the tropics and have low air pressure.
It employed 28,490 RNs in May 2013 (as per the BLS). At that time, employment per 1,000 jobs for these professionals was 17.366. According to the survey of the Bureau of Labor Statistics, the average annual and per hour registered nurse salary in Oregon was $80,440 and $38.67, respectively, in May 2013.
Oregonâs largest city is Portland. With a population nearing 600,000, it is almost three times the size of both Eugene and Salem, the next most populated cities.As the following BLS salary data indicates, the larger population typically pays off with higher salaries for teachers.arning a masterâs-level degree will add about $4,000 per year to a teacherâs salary. Those interested in becoming a teacher in Oregon should be aware of how their teaching concentration can affect their paycheck.