D-6 
Volumetric interpolator Data Engine 
mm* 
I \ OS '. Mi I Rf( I\ ! ! R 
Ddiabase Name , r C \Vol30403\data1999 mdb 
T able Name r c bpwq99 
Enlet Descipltve Title 
[Chesapeake Bay Walei Quality Analysis 
Choose Paiametei [CHLA.ChlorophyT 
CHLA C>,io. 
DO.Dissolved Oxygen 
SALINITY.Sabrxty 
WTEMP.Watei Tempeiatuie 
NH4F Ammonia 
N02F Nitrite 
|N03FNitiate ' 
Choose Start Date ji / 5/1999 
1 /S/1939 
1/7/1999 
1/11/1999 
1/12/1999 
T lanslc.m 
• Lmeai 
Choose Geography 
(* All Bay and Tribs 
C Che« Bay ICB1C88) 
Dies Bay Mobiack Tangier 
Chester 
Choplank 
F Etaab*th 
Output File Name 
Inieipolatoi Settings 
M murium N eighbor s (( 
Maximum Neighbors ( 4 " ~ 
Horeontal Range (M) (25000 
Misang Value (!g 
Choose End Date f 1/5/1999 
Log (Base 2 ) 
r 
1/6/1999 
1/7/1999 
1/11/1999 
1/12/1999 
F 1/SqRooi 
James 
Naniicoke 
Patuxent 
Pocomoke 
Potomac 
Rappahannock 
York. 
Detection Limit 
Repoited Value 
F One-half Repoited Value 
F Fixed Value 
Choose Depth Range 
Depth Range (m| Top (q Bottom (50 
Depth Layeis 
f r 
r r 
Gioupmg of Data 
f* All data m single data set 
F Group by BAY_CRUISE 
Group by CruueJD (Yi*Month) 
r Group by Year Month F 
r 
F Group by Month 
Group by Season IMM/DOI 
P Spimg (03/21 
r 
r 
r 
F 
F 
F 
r 
r 
r Group by Year ♦ Season 
P Pa# [09/21 
(990105.085251 d3d 
Browse 
W Summer 06/21 
Deate Files 
W Winter ,12/21 
Done 
Figure D-4. The Data Engine screen provides many options for the user to aggregate data selected from an 
ACCESS data base table. Similar capabilities are built into the DART tool at the Chesapeake Bay Program, that 
allows access to the entire historical water quality data base. 
GEOGRAPHY BUTTON 
Click the Geography Button to select the Geography screen. Select the bathymetry 
that matches your requirement, such as, Chesapeake Bay or Bay and tidal tributaries 
(Figure D-5). 
PARAMETER BUTTON 
Click the Parameter Button to select the Parameter screen. Select the parameter 
that matches your requirement, such as, dissolved oxygen, salinity, or water temper¬ 
ature (Figure D-6). The number of significant digits of numerical precision is 
pre-selected for each parameter, but the value can be changed by the user in the 
Params.ini file. 
appendix d 
User Guido and Documentation for the Chesapeake Bay Interpolator 
