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July Mean Rainfall (mm) 2000-2007 Domain covers area of PARFLOW modeling. July Mean Rainfall (mm). Significance levels of tests that mean July rainfall in Box i is different from mean July rainfall in box j. Rain Gage networks used for “bias correction” of radar rainfall fields.

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July

Mean Rainfall (mm)

2000-2007

Domain covers area of PARFLOW modeling


July Mean Rainfall (mm)

Significance levels of tests that mean July rainfall in Box i is different from mean July rainfall in box j.


Rain Gage networks used for “bias correction” of radar rainfall fields.

Multiplicative bias corrective is carried out on a daily time step (midnight to midnight).

QC of rain gages key to quality of the rainfall products.


Scatterplots rainfall fields. of daily rainfall from BWI and Metcalf and Eddy Gage 6 and Metcalf and Eddy Gage 2. BWI rain gage was used as a reference in assessing quality of other rain gage observations.


Box plot of the number of 15-minute Hydro-NEXRAD rainfall fields per day by year. Maximum for a day is 96. Availability of Hydro-NEXRAD fields improves over time, with poor availability in 1999. “Stage IV” radar rainfall fields (hourly, 4km, operational products) are used to fill in gaps of missing data. Whiskers are 10 and 90 % values.


Box plots of daily multiplicative bias values for Hydro-NEXRAD rainfall fields. Whiskers give 10 and 90 % values.


Monthly Hydro-NEXRAD rainfall fields. Whiskers give 10 and 90 % values.boxplots of multiplicative bias values for Hydro-NEXRAD rainfall fields (top) and Stage IV rainfall fields.


Boxplots Hydro-NEXRAD rainfall fields. Whiskers give 10 and 90 % values. of seasonal bias in Hydro-NEXRAD rainfall fields, conditioned on daily mean gage rainfall exceeding 1 mm (top), 5 mm (middle) and 10 mm (bottom).


Intercomparison Hydro-NEXRAD rainfall fields. Whiskers give 10 and 90 % values. of hourly bias-corrected Hydro-NEXRAD rainfall fields and rain gage observations from Metcalf-Eddy network.


Basin-averaged rainfall rate (15 minutes) from bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from Baisman Run (top left), Moores Run (top right), Upper Gwynns Falls (lower left) and Dead Run (lower right)

for June 2006.


Detail: 1 – 4 June 2006 bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from


Detail: 22 – 30 June 2006 bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from


March bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


April bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


May bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


June bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


July bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


August bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


September bias-corrected Hydro-NEXRAD rainfall fields and discharge (1 – 15 minute time interval) from

Mean Rainfall (mm)

2000-2007


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