Scientists classify air masses according to their general  characteristics and latitude. Artic air masses form at around 60  degrees latitude, Polar masses are at around 40 â¦degrees latitude,  warm tropical air masses are at 15 degrees latitude and very hot  air masses form near the equator.
Average Registered Nurse Salaries. The average salary for registered nurse jobs in Memphis, TN is $45,000. Average registered nurse salaries can vary greatly due to company, location, industry, experience and benefits. This salary was calculated using the average salary for all jobs with the term registered nurse anywhere in the job listing.
The BLS reports the average yearly salary for RNs was $69,110 as of May 2011. The median salary, or halfway point, was $65,950 a year. The lowest-paid 10 percent of registered nurses earned less than $44,970 a year, while the highest-paid 10 percent earned $96,630 a year or more.