In addition, the more detailed images of recent years provided them with annual resolution of the changes. (environmentalresearchweb.org)
Many proxy records that span the past 2000 years are not annually resolved, however, and in some regions, most of the available records of any length lack annual resolution. (eos.org)
Although Be10 records do not show great correlation below the decadal scale (but they will show the 11 year cycle if taken at annual resolution) they start to show much better agreement at 30 + yr timescales and in identifying large events. (realclimate.org)