Jet energy and missing ET systematic uncertainties for early Run 2 data with the ATLAS detector

The jet energy scale and resolution and their systematic uncertainties are determined for jets measured with the ATLAS detector using proton-proton collision data with a centre-of-mass energy of \sqrt{s}=13 TeV. Jets are clustered with the anti-kt algorithm with R=0.4 and calibrated using MC simulations. Uncertainties are based on measurements using 2012 data, measurements using early 2015 data and dedicated studies using MC simulations. In addition, systematic uncertainties on soft activity and its contributions to the missing transverse energy are determined using MC simulations and validated using early 2015 data.