Changes to this algorithm include:
Complete recalibration to RSS Version 7 standard, as follows:

• Intercalibration with other microwave radiometers, particularly SSM/I F13 and WindSat
• Calibration with improved Radiative Transfer Model (RTM): RSS RTM Version 2011
• Updated ocean emissivity model (Meissner and Wentz 2012)
• Adjustment of the water vapor and oxygen absorptions, particularly the water vapor continuum absorption
• Improved calibration over land, based on heavily vegetated tropical rainforest scenes
• Nonlinearity correction at 18.7 GHz, brightness temperatures approx. 2 degrees K lower over land
• Adjustment to Antenna Pattern Coefficients (APC) for cross-polarization and spillover
• Slight shift to the 18.7 GHz center observation frequency
• Adjustment of effective hot-load temperature

Improved Radio Frequency Interference (RFI) flagging in response to new geostationary sources. For more details, see the Remote Sensing Systems RFI page:

• Replacement of the Geostationary_Satellite_Glint_Angle field with two new fields:
  Geostationary_Reflection_Latitude
  Geostationary_Reflection_Longitude
• For each observation, L2A now includes the location where the reflection vector intersects the geostationary sphere