Category Archives: Climate Oscillations

TOA EEI versus Surface Net Flux

The Earth Energy Imbalance (EEI) is calibrated or “tuned” to match changes in ocean heat content. The satellite top-of-the-atmosphere radiation measurements are not accurate enough to measure the value without tuning. But we only have 20 years of good data. Given the Atlantic Multidecadal Ocean or AMO oscillation is 60-70 years long, is 20 years enough?

Climate Oscillations 12: The Causes & Significance

The connection between orbital mechanics, solar variability and climate is complex.

Climate Oscillations 11: Oceanic Niño Index (ONI)

By Andy May The Oceanic Niño Index or ONI is NOAA’s primarily indicator for monitoring the sea surface temperature (SST) anomaly in the critical Niño 3.4 region. It is a 3-month running mean of ERSST.v5 SST anomalies in the Niño 3.4 region, defined as 5°N-5°S and 120°W-170°W. Figure 1 shows the ONI as computed fromContinue reading “Climate Oscillations 11: Oceanic Niño Index (ONI)”

Climate Oscillations 10: Aleutian Low – Beaufort Sea Anticyclone (ALBSA)

The Aleutian Low – Beaufort Sea Anticyclone climate index or ALBSA is designed to predict snow and ice melting times on the North Slope of Alaska.

Climate Oscillations 9: Arctic & North Atlantic Oscillations

The AO and NAO are the dominant modes of climate variability in the Northern Hemisphere and neither of them can be reproduced using climate model output.

Climate Oscillations 8: The NPI and PDO

The NPI and PDO are closely related and do not correlate well with global warming.

Climate Oscillations 7: The Pacific Mean SST

Does HadCRUT5 accurately reflect the warming rate of Earth’s surface? How do Pacific Ocean SSTs compare?

Climate Oscillations 6: Atlantic Meridional Mode (AMM)

The AMM, or the Atlantic Meridional Mode, is closely related to Atlantic hurricane activity and poorly modeled in climate models.

Climate Oscillations 5: SAM

The Southern Annular Mode (SAM) has a major influence on global climate.

Climate Oscillations 4: The Length of Day (LOD)

The Length of Day correlates with meridional circulation and global warming and cooling.