Pacific Northwest PAW1: NE Pacific timeline Jan 2015 Jan 2014 Jan - - PowerPoint PPT Presentation

Pacific Northwest

PAW1: NE Pacific timeline

AK: GOA AK: Seldovia BC: coastal WA: La Push WA: offshore OR: Newport OR: offshore N CA: Humboldt OR: Columbia R.

• J. Keister, Blob 1 Workshop, PNW breakout lead

Jan 2013 Jan 2014 Jan 2015

Warm Temps: In GOA first, Fall 2013

AK: GOA AK: Seldovia BC: coastal WA: La Push WA: offshore OR: Newport OR: offshore N CA: Humboldt OR: Columbia R. Jan 2014

• J. Keister, Blob 1 Workshop, PNW breakout lead

Jan 2013 Jan 2014 Jan 2015

Then arrive PNW offshore during summer ‘14

AK: GOA AK: Seldovia BC: coastal WA: La Push WA: offshore OR: Newport OR: offshore N CA: Humboldt OR: Columbia R. Aug 2014

• J. Keister, Blob 1 Workshop, PNW breakout lead

Jan 2014 Jan 2015

Then come inshore fall ‘14

AK: GOA AK: Seldovia BC: coastal WA: La Push WA: offshore OR: Newport OR: offshore N CA: Humboldt OR: Columbia R. Oct 2014

• J. Keister, Blob 1 Workshop, PNW breakout lead

Jan 2013 Jan 2015

SST at NOAA Buoy 46050 Stonewall Bank off Newport

• ‘The Blob’ came
• nshore 14 Sep 2014

at 10 pm

• The temperature

increased 6°C in a few hours

• Peak temperature

reached 19.4°C

From Peterson and Fisher

2014 SHIFT TO DOWNWELLING SUDDEN (ON SEPT. 25)

EVIDENT AT CHA’BA OFF LA PUSH, WA

Aug 2014 anomaly Oct 2014 anomaly

A major story for 2014 is that despite strong

• ffshore positive T

anomalies, the near coastal waters were normal to cooler than average until the Sept 2014 fall transition How does this compare for 2015?

Aug 2014 anomaly Oct 2014 anomaly Aug 2015 had already warmer than avg waters at coast Aug 2015 anomaly Oct 2015 anomaly

Upwelling 45°N 1996 - 2015

Cummulative upwelling 45° 1996-2015 Jan Mar May Jul Sep Nov Jan

• 20000
• 15000
• 10000
• 5000

5000 10000 2014 2015 Downwelling Upwelling

• 2014- upwelling delayed until late June (nearly matched 2005) then was average
• 2015- upwelling began on time and has been the strongest in the past 20 years

From Peterson and Fisher

Offshore-onshore gradients

“NDBC Washington, offshore” “CDIP Grays Harbor”

2014

+4C anomaly peak, always warmer during 2014, much >2 s.d. Washington, offshore

Washington Offshore buoy

Jan July Dec

2015

+3C anomaly peaks in spring and summer, always warmer during 2015, much >2 s.d. Washington, offshore Jan July Dec

Washington Offshore buoy

2014

CDIP off Grays Harbor More mixed signal, with most >1 sd positive anomalies in spring and fall Jan July Dec

Grays Harbor buoy

2015

More mixed signal, with most >1 sd positive anomalies in winter and summer CDIP off Grays Harbor Jan July Dec

Grays Harbor buoy

In general

• Most extreme positive T anomalies (>2 s.d.)

were offshore whereas near coastal waters were mostly only >1 s.d.

• For near coastal waters, highest T anomalies:

spring and fall 2014, winter and summer 2015

• Coastal upwelling:

cooler than normal T during 2014 but warmer than normal T in July & August 2015

NH-5 Copepod Species Richness

17 new copepod species observed in 2014-2015, many are Transition Zone/North Pacific Current species as opposed to coastal southern species

Copepod Species Richness Anomaly Year 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 Copepod Species Richness Anomaly

• 8
• 6
• 4
• 2

2 4 6 8 10 12

Oct Nov Dec Jan Feb Mar

8-31 beaches 2001-2015 7-36 beaches 2002-2015 7-46 beaches 2002-2015 5-22 beaches 2006-2015 7-26 beaches 2007-2015 16-37 beaches 1994-2015

Sep

.25 2.5 25 .025

2014-15 mean long-term average 3-6 beaches 2014-2015 COASST: Neah Bay WA to Mendocino, BeachWatch: Mendocino to San Francisco Bay. Data are Cassin’s Auklets carcasses/km, new finds only. Sample size is number of beach sites over the listed year range.

Unprecedented Mass Mortality Event (~100,000 dead Cassin’s Auklets)

Courtesy Julia Parrish/UW

Christopher Krembs

• Slides and data provided by:

– Jan Newton – Bill Peterson – Julia Parrish – Christopher Krembs