Update README.md

README.md

@@ -18,7 +18,7 @@ Code to setup and run FaIR simulations (see description of these simulations bel
 # FaIR data
 
 ## Temperature
-Time-series of annual global surface air temperature (GSAT) anomalies for 500 FaIR simple climate model simulations using historical emissions and future emissions scenarios (NDCs, SSP1-1.9, SSP1-2.6, SSP3-7.0, and SSP5-8.5). Anomalies are calculated with respect to 1850-1900. The 500 simulations were generated from a broad uncertainty analysis of possible futures, based on lines of evidence for ECS, TCR, and ERF that reflect our latest understanding since IPCC SR1.5. Files listed use two different time-series of aerosol ERF: the default CMIP6 aerosol ERF, or the aerosol ERF from AR5.
+Time-series of annual global mean surface air temperature (GSAT) anomalies for 500 FaIR simple climate model simulations using historical emissions and future emissions scenarios (NDCs, SSP1-1.9, SSP1-2.6, SSP3-7.0, and SSP5-8.5). Anomalies are calculated with respect to 1850-1900. The 500 simulations were generated from a broad uncertainty analysis of possible futures, based on lines of evidence for ECS, TCR, and ERF that reflect our latest understanding since IPCC SR1.5. Files listed use two different time-series of aerosol ERF: the default CMIP6 aerosol ERF, or the aerosol ERF from AR5.
 
 ## ECS, TCR, and ERF
 Distributions of ECS, TCR, and ERF, used to generate each set of 500 simulations. Also contains time-series of the ERF, both for its total and for individual forcing agents. Both versions of the aerosol ERF time-series described above are given.