This dataset comprises a series of six .xls workbooks which contain the data auxiliary material for the manuscript "Metrology and Traceability of U-Pb Isotope Dilution Geochronology (EARTHTIME Tracer Calibration Part I)" by Daniel Condon, Blair Schoene, Noah McLean, Samuel Bowring and Randall Parrish, submitted to Geochimica et Cosmochimica Acta (June 2014). These data comprise the input measurement data for the EARTHTIME U-Pb Tracer Calibration experiment, the results of which are documented in the manuscript mentioned above. This data set contains isotope ratio data for the manuscript listed above. ts01.xls Amelin and Davis (2006) Pb reference material isotope ratio data ts02.xls CRM 115 U isotope ratio data ts03.xls Gravimetric-Tracer mixture isotope ratio data ts04.xls GDMS elemental concentration data ts05.xls Tracer-blank Pb isotope ratio data ts06.xls U critical mixture isotope ratio data. Link to Published Paper - Metrology and Traceability of U-Pb Isotope Dilution Geochronology (EARTHTIME Tracer Calibration Part I) http://dx.doi.org/10.1016/j.gca.2015.05.026

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 21 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 11 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 23 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 9 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 19 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 22 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft collected for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft collected for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.

Airborne atmospheric measurements from core instrument suite data on board the FAAM BAE-146 aircraft during flight 2 for FAAM Test, Calibration, Training and Non-science Flights and other non-specified flight projects.