Ej. Brown et We. Bardsley, Recording rainfall stratigraphy: a modified storage gauge for measuring rainfall events, J HYDROL, 216(1-2), 1999, pp. 137-144
Standard storage rain gauges preserve nothing of the magnitude of individua
l rainfall events. A low-technology modified storage gauge is described whi
ch records event magnitudes but not their timing. A float in the gauge cont
ains a collimated radioactive source which has its intensity calibrated so
that each rainless period generates a line on a protected film. Rainfall ev
ent magnitudes are recorded as the vertical intervals between consecutive h
orizontal lines on the film. That is, the record represents a stratigraphic
column of rainfall events at the gauge location. A network of the gauges a
llows significant rainfall event "layers" to be linked through space analog
ous to stratigraphic correlation. (C) 1999 Elsevier Science B.V. All rights
reserved.