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The Global Lake Ecological Observatory Network (GLEON) is supported in part by the National Science Foundation (NSF) under Grant Number DBI RCN 0639229 and MSB 1137327, 1137353 and other generous donors. This blog receives technical support from the Center for Limnology (CFL) at University of Wisconsin-Madison and Cary Institute of Ecosystem Studies. Any information, opinions, findings, and conclusions or recommendations expressed in this blog are those of the individual author(s) and do not necessarily reflect the views of NSF, CFL, Cary Institute, GLEON or GLEON Student Association (GSA).
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U.S. Environmental Protection Agency’s 2012 National Lakes Assessment: data now available online

The U.S. Environmental Protection Agency (EPA) released the 2012 National Lakes Assessment (NLA) data in December, which are now publicly available online.

Every five years, the EPA launches a comprehensive sampling campaign, where together with state and local governments, tribes, and many other agencies, they sample over 1000 lakes and reservoirs (hereafter, together referred to as waterbodies) across the United States. The final set of waterbodies that are sampled are selected randomly using a statistical survey design to appropriately sample waterbodies that are representative of the U.S. waterbody population across multiple size classes. The first comprehensive survey conducted by the EPA was in 2007, and so this represents the second survey. Approximately 400 waterbodies were resampled in 2012, and approximately 600 were newly sampled waterbodies.

Lakes and reservoirs sampled in the 2012 EPA National Lakes Assessment.

Lakes and reservoirs sampled in the 2012 EPA National Lakes Assessment.

For each sampled waterbody, there are a diverse suite of variables collected and analyzed such as: waterbody morphometric characteristics, lakeshore land use, profiles of e.g. temperature and dissolved oxygen, many water chemistry variables, and phytoplankton and zooplankton metrics such as density and biomass at the genus resolution. Field crews follow standardized protocols at each waterbody, and water samples for water chemistry and plankton counts are analyzed at central laboratories, subjected to multiple phases of quality control. (more…)

Lake Annie’s Song: A TEDx Talk and Interview with GLEON’s Evelyn Gaiser

A recent TEDxFIU event kicked off with Global Lake Ecology Observatory Network (GLEON) member Evelyn Gaiser’s unexpected discovery that her two passions, science and music, could come together to help her better understand data. Evelyn’s interpretation of the year-round daily temperature changes in Florida’s Lake Annie formed the basis for her TEDx talk.

Caption: Lakes write music. Science is listening. | Evelyn Gaiser | TEDxFIU

Evelyn is a classically trained musician, so when she visualized the temperature data collected from Lake Annie she also saw a musical score. By assigning the data points a musical note, she composed Lake Annie’s song. The piece was then arranged by Marcus Norris and performed by Yaniv Cohen, Aryam Gonzalez and Tomas Lopez, all members of the School of Music on the TEDxFIU stage.

“Music seems uniquely suited to expressing the nuances of nature,” Gaiser said in an FIU News report about the event, noting a growing trend of scientists and musicians around the world coming together to explore the complexities of nature in this way. (more…)

Samiullah Khan, New Co-Chair Elect for the GLEON Student Association

Photo: Sami Khan at Lake Quramber Bathy, Ghizer, GB. Credit: courtesy of Sami Khan.

Samiullah Khan during the first ever bathymetric survey of Lake Quramber (a.k.a Karumber), District Ghizer, GB, Pakistan. (One of the world’s high altitude biologically active lakes; elevation: 14301 feet).

By Samiullah Khan

I was recently offered and readily accepted the co-chair elect position of the Global Lake Ecological Observatory Network (GLEON) Graduate Student Association (GSA), joining chair, Blaize Denfeld (Umeå University, Sweden) and co-chair Jonathan Doubek (Virginia Tech, USA). As a new member of the team, I would like to introduce myself and mention in brief my past and present professional and academic involvements. (more…)

Undergraduate Research Focus at NE GLEON Regional Conference

By Blaize Denfeld

The 2nd Annual NE GLEON conference held at the Cary Institute of Ecosystem Studies in Millbrook, NY, from April 15-17, gave students and professors representing 11 universities and colleges in northeastern North America the opportunity to experience a “mini” version of a GLEON all-hands meeting. Although undergraduates were the focus of the weekend meeting, comprising nearly half of the 32 participants, graduate students and faculty members also gathered to share data and plan regional research activities for the coming year.

Photo: NE GLEON Participants. Credit: L. Borre.

NE GLEON participants included 15 undergraduates, eight graduate students or early career scientists, and nine faculty advisors or research scientists. A full list of participants’ names and affiliations can be found at the end of the post. (Photo credit: L. Borre)

“I had the amazing opportunity to attend the regional NE GLEON conference. There were several students from various institutions with a wide array of majors, backgrounds, and interests. Although this was my second time attending a NE GLEON meeting, I was still greeted with enthusiasm, almost like being reunited with old friends,” said Brian Kim, an undergraduate student from Colby College in Maine. (more…)

A Note from Newly Appointed GSA Leader Blaize Denfeld

Photo: Blaize Denfeld under ice lake research. Source: Blaize Denfield.

GSA co-chair elect Blaize Denfield conducting under ice lake research in Sweden.

By Blaize Denfeld

I gratefully accepted a recent appointment as co-chair elect of the Global Lake Ecological Observatory Network (GLEON) Graduate Student Association (GSA), the newest member of the GSA leadership team, joining GSA chair, Jennie Brentrup (Miami University, USA) and co-chair Facundo Scordo (Universidad Nacional del Sur, Argentina). One of my first assignments is to briefly introduce myself to the GLEON community. (more…)

2015 GLEON Fellowship Program at Lake Sunapee

By: Kait Farrell, Sarah Lynn Bartlett and Ian McCullough.

Photo: GLEON fellowship program 2nd Cohort. Credit: LSPA.

Back row (from left to right): Paul Hanson, Jonathan Doubek, Derek Roberts, Sam Burke, Nick Skaff, Facundo Scordo, and Ian McCullough. Middle row: Hilary Dugan, Jamie Summers, Kait Farrell, Sarah Barlett, and Flora Krivak-Tetley. Front row: Zutao Yang, Kathie Weathers, Mindy Morales and Grace S. Hong.

It was a dark and stormy night. Well not exactly stormy, but it had been dark since 5 pm and was exceptionally cold (mostly for those joining the group from warmer areas of the world); nothing but a typical January evening in central New Hampshire. It was the night following the fourth and final day of the Global Lake Ecological Observatory Network (GLEON) Fellowship Program workshop at Lake Sunapee, New Hampshire, a quaint lake side community largely dormant for the winter.

(more…)

PRAGMA-GLEON Expedition, 2014

by Meilan Jiang

The Pacific Rim Application and Grid Middleware Assembly (PRAGMA) 26th meeting was held in Taiwan in April with the underlying theme of “Living with Big Data.” Recent efforts of the GLEON – PRAGMA collaborative scientific expedition were shared at a group session in the meeting, and challenges and milestones of this collaboration were identified.

The PRAGMA 27th meeting will be held in October at Indiana University Bloomington just before the GLEON meeting. The new conceptual interdisciplinary challenge, a “Hackathon,” will be operated at PRAGMA 27, and GLEON members are encouraged to participate in this event.

Photo: GLEON and PRAGMA people enjoyed the dinner with Taiwanese traditional performance group.

GLEON and PRAGMA members enjoyed the dinner with Taiwanese traditional performance group, “The voice of Namasia” (front). From the top left, Paul Hanson, Zhenguo Cui, Craig Snortheim, Meilan Jiang, Gabriel Zhou, Fang-Pang Lin, and Lilian Chan.

(more…)

Welcome, New Collaborative Climate Committee Members!

By Ludmila Brighenti and James Rusak (CCC chair)

It is with joy that the GLEON Collaborative Climate Committee (CCC) and Graduate Student Association (GSA) welcome Paula Zapperi and Thomas Harmon as new members of the CCC, and Liz Ryder as the new co-chair of the CCC. They were elected to be the member of the committee in February 2014, and we are excited to see the new enthusiasm and contributions they have to offer.

Photo: GLEON CCC members.

New Collaborative Climate Committee members Paula Zapperi, Thomas Harmon and Liz Ryder.

(more…)

Meet Facundo Scordo, the New GSA Leader!

The GLEON Student Association (GSA) welcomes Facundo Scordo as the new co-chair elect. He has a background in Environmental Sciences and is currently enrolled as a Ph.D. candidate in the Geography department at the Universidad Nacional del Sur in Argentina. Facundo was elected to the new leadership role in February 2014 and is expected to take the co-chair position, after the G16 meeting in 2014, and the chair position, after the G17 meeting in 2015. Congratulations, Facundo!

Photo: Facundo Scordo.

Facundo Scordo is the first GSA leader to be appointed from South America and a non-English speaking nation.

(more…)

GLEON GSA Newsletter Links

The GLEON Graduate Student Association (GSA) previously produced four issues of a newsletter before moving to this blog platform. Here are links to past issues of the GLEON GSA newsletter. Legacy!