cbofs2 temperature and salinity sensitivity to river forcing
DESCRIPTION
CBOFS2 Temperature and Salinity Sensitivity to River Forcing. Lyon Lanerolle 1,2 , Richard Patchen 1 and Frank Aikman III 1 1 National Oceanic and Atmospheric Administration (NOAA) National Ocean Service/Office of Coast Survey/Coast Survey Development Laboratory - PowerPoint PPT PresentationTRANSCRIPT
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NOAA/NOS/OCS/Coast Survey Development Laboratory
CBOFS2 Temperature and Salinity Sensitivity to River Forcing
Lyon Lanerolle1,2, Richard Patchen1 and Frank Aikman III1
1National Oceanic and Atmospheric Administration (NOAA)National Ocean Service/Office of Coast Survey/Coast Survey Development Laboratory
1315 East-West Highway, Silver Spring, MD 20910
2Earth Resources Technology (ERT) Inc.10810 Guilford Road, Suite 105, Annapolis Junction, MD 20701
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NOAA/NOS/OCS/Coast Survey Development Laboratory
CBOFS2 Model Grid
![Page 3: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/3.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
CBOFS2 Rivers for Forcing
River volume discharge adjustment factors (Wen Long)
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NOAA/NOS/OCS/Coast Survey Development Laboratory
CBOFS2 Total River Volume Discharge
Events
Dry Periods
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NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Surface Temperature Temperature (oC) Temp. Difference
(oC)
Difference = CBOFS2 with new river Q weights – original CBOFS2 hindcast run
![Page 6: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/6.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Bottom Temperature Temperature (oC) Temp. Difference
(oC)
![Page 7: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/7.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Winter Time Surface Temperature Temperature (oC) Temp. Difference
(oC)
![Page 8: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/8.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Winter Time Bottom Temperature Temperature (oC) Temp. Difference
(oC)
![Page 9: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/9.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Surface Salinity Salinity (PSU) Salt. Difference
(PSU)
![Page 10: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/10.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Bottom Salinity Salinity (PSU) Salt. Difference
(PSU)
![Page 11: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/11.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Winter Time Surface Salinity Salinity (PSU) Salt. Difference
(PSU)
![Page 12: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/12.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Bottom Salinity Salinity (PSU) Salt. Difference
(PSU)
![Page 13: CBOFS2 Temperature and Salinity Sensitivity to River Forcing](https://reader036.vdocuments.site/reader036/viewer/2022062323/56816185550346895dd11b9a/html5/thumbnails/13.jpg)
NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Lower Bay Conditions
Difference = CBOFS2 with new river Q weights – original CBOFS2 hindcast run
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NOAA/NOS/OCS/Coast Survey Development Laboratory
Summer Time Upper Bay Conditions
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NOAA/NOS/OCS/Coast Survey Development Laboratory
Winter Time Lower Bay Conditions
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NOAA/NOS/OCS/Coast Survey Development Laboratory
Winter Time Upper Bay Conditions
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NOAA/NOS/OCS/Coast Survey Development Laboratory
Summary and ConclusionsCBOFS2 river volume discharges need adjusting to
compensate for ground, surface water effects, etc. Effect of adjustments clearly manifested in the CBOFS2 T
and S predictions Spatial (horizontal) T and S differences at surface and
bottom are similarDifferences in T mainly at Bay mouth, shelf and in tributaries
and ± 1 oCDifferences in S more clearly seen specially in tributaries and
are ± 1.5 PSUT, S differences in Bay axis appear to get washed out to the
Bay mouth & shelfSpatio-temporal (depth vs. time) T, S differences show that :
(i) in lower Bay they are localized near the surface but otherwise distributed throughout the water column, (ii) in upper Bay the differences are more stratified with less variations and (iii) Summer-Winter differences are not dissimilar