- Geosciences
- Biogeochemistry
- Paleoceanography
- Paleoclimatology
—————:::News:::——————
————April 2012————
Just returned from a succesful research cruise in the North Atlantic. Thank you to all the BIOS and BATS personnel who provided essential support before, during, and after the cruise!
Getting ready to deploy the net in the early hours of a cool North Atlantic day:
Leaving Bermuda for BATS:
And thank you to my scientific team, Michelle Drake and Tom Serwatka:
————March 2012————
If you are interested in sedimentary nitrogen isotopes (and I know you are), please download and read the report I wrote for a workshop last summer (NItrogen Cycle in the Ocean, Past and Present—(NICOPP):
You can download the entire PAGES newsletter HERE or just go to their website HERE.
————February 2012————
Ocean Sciences is in Salt Lake City, Utah this year. I would have liked to have it held somewhere near the ocean (!), but there are great sessions this week and I'm excited to see all the new research. There is a session on "Linking the OMZ with the open ocean" and it couldn't have been more tailored to my own work. This session is the last day of the week and here's a sneak peak of my talk:
————January 2012————
My paper on tropical Pacific nitrate d15N (and how it got that way) is out and I was happy to see it is the most popular manuscript at GBC this month.
Please note that the AGU copy editor introduced a typo in the "Key Points" that should be fixed shortly.
————December 2011————
When I was in graduate school (at Scripps Insitution of Oceanography), a local high school student named Ulisses Barraza helped me preprare hundreds of sediment samples for N isotopic analysis during his summer vacation. He was a huge help and he later went on to UCLA where he is majoring in chemical engineering.
The latest news from him is that he recently visited the White House on behalf of San Diego's Ocean Discovery Institute (link here). Great going, Ulisses!
————July 2011————
Drove to Nova Scotia for an excellent meeting discussing (what else?) nitrogen isotopes! It was the NiCOPP meeting (Nitrogen Cycle in the Ocean, Past and Present). I had a great time staying at Dalhousie and venturing out to the coastline (there were good waves my last day there). It's incredibly pretty there. Look for my report on the meeting in an upcoming PAGES newsletter.
————September 2010————
Back to San Diego—I am attending the International Conference on Paleoceanography at UCSD. I designed the logo:
That's a stylized version of Scripps pier. I had some good times alongside that pier.
————April 2010————
I'm busy making lots of nitrate isotope measurements in the lab and have been wondering what nitrate d15N and d18O looks like for the coastal ocean. My first insight was that there is no nitrate is south Jersey surface water (just outside the wave zone in Avalon, NJ where I grew up). My "local" surf spot in Sea Girt has around 6.3 uM nitrate in the surface coastal layer. I wonder what the isotopes will look like?
Sample bottles—ready for action.
————February 2010————
If it's February and it's an even-numbered year, it must be Ocean Sciences. This time around I gave a talk on my equatorial Pacific nitrate d15N measurements (and what they mean for nutrient pathways around the south Pacific). Link to my abstract here.
News flash: it's cloudy and rainy in Portland, OR.
————September 2009————
My return to New Jersey! I am a NJ native, but it's been a long time. I'm excited to be working in the Sigman lab.
