The transient pulses of heat and particles arriving at the divertor target plates as a consequence of upstream ELM activity have been characterised at JET using an array of target embedded Langmuir probes in the MarkIISRP divertor. High temporal and spatial resolution of the ELM time behaviour has been achieved by slow divertor strike point sweeps during ELMing H-mode discharges and subsequent coherent averaging of the data. One key result is the observation of target particle flux profile broadening with an e-folding length twice the inter-ELM during Type-I ELMs, presumably as a consequence of the enhanced radial transport. During the ELMs large divertor target currents have been observed, which change sign when the direction of the ion B ¥ B drift is reversed. First comparisons of IR and Langmuir probe derived power deposition profiles have shown a clear increase in the total sheath heat transmission coefficient during the ELMs.