1 / 14

Coupling of Equatorial Pacific Conditions with Southeast U.S. River Discharge

Coupling of Equatorial Pacific Conditions with Southeast U.S. River Discharge. Lawrence B. Cahoon Dept. of Biology and Marine Biology UNC Wilmington. Correlations – Climate Indices.

uzuri
Télécharger la présentation

Coupling of Equatorial Pacific Conditions with Southeast U.S. River Discharge

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Coupling of Equatorial Pacific Conditions with Southeast U.S. River Discharge Lawrence B. Cahoon Dept. of Biology and Marine Biology UNC Wilmington

  2. Correlations – Climate Indices Coefficients (r2) from least-squares linear regressions of river discharges (USGS data) vs. “major” NH climate indices; * = r2< 0.01. ________________________________________________ “Major” NH Indices River PDO NAO AMO James * * * Cape Fear * * * Savannah * * 0.017 _________________________________________

  3. Correlations – ENSO Indices Coefficients (r2) from least-squares linear regressions of river discharges (USGS data) vs. ENSO indices; * = r2 < 0.01. _______________________________________________________________ ENSO Indices River SOI BEST MEI James * * 0.02 Cape Fear * * * Savannah 0.02 0.02 0.02 _______________________________________________________________

  4. Correlations – ENSO SSTs Coefficients (r2) from least-squares linear regressions of river discharges (USGS data) vs. ENSO SST data; * = r2< 0.01. ______________________________________________________________________ Niño regions River 1+2 3 4 3.4 _________________________________ James 0.27 0.17 * 0.04 Cape Fear 0.16 0.07 * * Savannah 0.16 0.10 * 0.03 ________________________________________

  5. James River (36.9o-37.4oN, 75.8o-76.4oW) (1997-2008) [Chla] v. Flow, r2 = 0.29 DAC@490 v. Flow, r2 = 0.32 WLI@670, r2 = 0.25

  6. Cape Fear River (33.5o-34o N, 78o-78.5o W) (1997-2009) [Chla] v. Flow, r2 = 0.50 DAC@490 v. Flow, r2=0.39 WLI@670, r2 = 0.40

  7. Savannah River (1997-2008)_ (31.5o-32.3oN, 80.3o-81oW) [Chla] v. Flow, r2 = 0.42 DAC@490 v. Flow, r2 = 0.43 WLI@670 v. Flow, r2 = 0.09

  8. Hypothesis/question: • SEUS coastal ocean is coupled with ENSO; can we make useful forecasts?

More Related