adafruit/Adafruit_BMP085_Unified — pull request #3 by kunosee (2014-02-26 14:15:51+00:00)
Title: add another function, which will return seaLevelPressure for a given height

When you use the BMP-sensors for weather monitoring, you will not use an estimated sealevel-pressure to calculate altitude. In that case you know the altitude and wish to get the sealevel-pressure for a standardized comparable reporting.