https://limnowill.com/2022/04/17/umass-students-report-on-arctic-paleoclimate/2022-04-17T14:02:52+00:00monthlyhttps://limnowill.com/2020/05/03/roni-horn-exhibit-opening-video/2020-05-03T22:22:55+00:00monthlyhttps://limnowill.com/2020/03/30/new-nova-polar-labs/https://limnowill.com/wp-content/uploads/2020/03/screen-shot-2020-03-30-at-6.18.35-pm.pngScreen Shot 2020-03-30 at 6.18.35 PM2020-04-03T14:07:33+00:00monthlyhttps://limnowill.com/2020/01/21/artist-roni-horn-to-exhibit-arctic-photography-at-umass/https://limnowill.com/wp-content/uploads/2020/01/iceland-1.jpgBlank Blue similar Iceland map isolated on white background. EurBlank Blue similar Iceland map isolated on white background. European country. Vector template for website, design, cover, infographics. Graph illustration.https://limnowill.com/wp-content/uploads/2020/01/iceland-e1579622704747.jpgBlank Blue similar Iceland map isolated on white background. EurIceland Silhouette2020-01-24T18:16:12+00:00monthlyhttps://limnowill.com/2013/08/19/road-trip-woot-woot-rhode-island-to-texas/2019-09-30T10:49:09+00:00monthlyhttps://limnowill.com/2018/11/02/umass-biogeochemistry-lab-performs-limnology-fieldwork-in-maine/https://limnowill.com/wp-content/uploads/2018/11/img_5851.jpgIMG_5851Re-deploying the trap for another year of sediment collection.https://limnowill.com/wp-content/uploads/2018/11/img_5841.jpgIMG_5841Success - it wasn't easy, but we got the sediment trap back to shore.https://limnowill.com/wp-content/uploads/2018/11/img_5829.jpgIMG_5829Dan helps prepare the sediment trap for extraction.https://limnowill.com/wp-content/uploads/2018/11/img_5822.jpgIMG_5822Boyang, Benjamin, and Helen grapple the sediment trap as they prepare to pull it from the lake.https://limnowill.com/wp-content/uploads/2018/11/img_5802.jpgIMG_5802A view of Basin Pond.https://limnowill.com/wp-content/uploads/2018/11/img_5794.jpgIMG_5794Dan bravely prepares to work on the sediment trap from the water.https://limnowill.com/wp-content/uploads/2018/11/img_5758.jpgIMG_5758Searching for the sediment traphttps://limnowill.com/wp-content/uploads/2018/11/img_5752.jpgIMG_5752Searching for the submerged buoy and sediment trap.https://limnowill.com/wp-content/uploads/2018/11/img_5736.jpgIMG_5736Fall foliage in Maine.https://limnowill.com/wp-content/uploads/2018/11/img_2557.jpgIMG_2557The interval sediment trap gives a snapshot of how settling sediment particles change over the season in Basin Pond. These bottles each represent ~3 weeks of sedimentation. (Photo: Dan Miller)2018-11-02T14:24:25+00:00monthlyhttps://limnowill.com/2018/09/12/life-in-an-earth-bound-space-pod/https://limnowill.com/wp-content/uploads/2018/09/dscn1343.jpgDSCN1343Our bathroom was pretty much like anyone else's, except 1) It had a name - "Serenity" and 2) we stored hundreds of empty bottles for urine collections. All in the name of science.https://limnowill.com/wp-content/uploads/2018/09/dscn0641_edited.jpgDSCN0641_editedhttps://limnowill.com/wp-content/uploads/2018/09/dscn0579.jpgDSCN0579https://limnowill.com/wp-content/uploads/2018/09/dscn1434.jpgDSCN1434Our HERA mascots.https://limnowill.com/wp-content/uploads/2018/09/dscn1404.jpgDSCN1404Art in a Podhttps://limnowill.com/wp-content/uploads/2018/09/dscn1067.jpgDSCN1067Toga night? you bethttps://limnowill.com/wp-content/uploads/2018/09/dscn1019.jpgDSCN1019HERA Art Galleryhttps://limnowill.com/wp-content/uploads/2018/09/dscn1006.jpgDSCN1006Sophisticated Saturdayhttps://limnowill.com/wp-content/uploads/2018/09/dscn0970.jpgDSCN0970Lots of scrabble. MS1 and I know all the two-letter words by now.https://limnowill.com/wp-content/uploads/2018/09/dscn0566.jpgDSCN05662018-09-13T13:46:51+00:00monthlyhttps://limnowill.com/2016/05/18/limnology-field-trip-part-deux/https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1991_1024.jpgthumb_DSCN1991_1024Mission accomplishedhttps://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1990_1024.jpgthumb_DSCN1990_1024Yeah, we take limnology seriouslyhttps://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1987_1024.jpgthumb_DSCN1987_1024Aly and Sally collect water while Jim looks on with either heartfelt approval or disapproval (hard to tell).https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1985_1024.jpgthumb_DSCN1985_1024Keven checking the secchi depth.https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1981_1024.jpgthumb_DSCN1981_1024View from my floating lazy-boy.https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1964_1024.jpgthumb_DSCN1964_1024Keven finds out that alkalinity is still low in Pout Pond, even after all these years.https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1963_1024.jpgthumb_DSCN1963_1024Ok, as TA, I have the very important job of keeping everyone safe and overseeing duties. Aka relaxing in a floating lazy-boy.https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1957_1024.jpgthumb_DSCN1957_1024A view of beautiful Pout Pond (littered with limnologists)https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1955_1024.jpgthumb_DSCN1955_1024Not sure what's going on, but doesn't it look like a nice day on the water.https://limnowill.com/wp-content/uploads/2018/04/thumb_dscn1951_1024.jpgthumb_DSCN1951_1024Lovinia and Keven find the deepest hole in the lake with depth sounders.2018-07-19T16:56:59+00:00monthlyhttps://limnowill.com/2016/11/04/pollution-remediation-and-paleolimnology-of-an-urban-pond/https://limnowill.com/wp-content/uploads/2018/04/sophiapic_6047.jpgSophiaPic_6047The coring crew with three overlapping core sections.https://limnowill.com/wp-content/uploads/2018/04/dscn4014.jpgDSCN4014Dave and Sophia paddle back towards shore.https://limnowill.com/wp-content/uploads/2018/04/dscn4010.jpgDSCN4010Dave and Sophia with the cores.https://limnowill.com/wp-content/uploads/2018/04/dscn4000.jpgDSCN4000Sophia labels which way is up - very important when working with sediment cores.https://limnowill.com/wp-content/uploads/2018/04/dscn3999.jpgDSCN3999Look at that beautiful sediment/water interface.https://limnowill.com/wp-content/uploads/2018/04/dscn3993.jpgDSCN3993Sophia caps the bottom of the core tube so sediment doesn't slop out the bottom.https://limnowill.com/wp-content/uploads/2018/04/dscn3987.jpgDSCN3987Adjusting the piston inside the core tube.https://limnowill.com/wp-content/uploads/2018/04/dscn3984.jpgDSCN3984How much mud did we get?https://limnowill.com/wp-content/uploads/2018/04/dscn3978.jpgDSCN3978Ready to corehttps://limnowill.com/wp-content/uploads/2018/04/dscn3975.jpgDSCN3975A perfect day for a paddle and some coring. Dave and Sophia navigate to the coring location.2018-07-19T16:56:27+00:00monthlyhttps://limnowill.com/2016/11/28/lindavia-intermedia-manguin-ex-kociolek-reviers-nakov-et-al-ex-daniels-et-al-comb-et-stat-nov/https://limnowill.com/wp-content/uploads/2016/11/c_bodanica_intermedia_lm1.jpgC_bodanica_intermedia_LM1Valve view of Lindavia intermedia under a light microscopehttps://limnowill.com/wp-content/uploads/2016/11/c_bodanica_intermedia_sem3.jpgC_bodanica_intermedia_SEM3Internal view of a Lindavia intermedia valve under SEM2018-07-19T16:55:18+00:00monthlyhttps://limnowill.com/2018/04/09/hera-17-mission-prep/https://limnowill.com/wp-content/uploads/2018/04/dscn1465.jpgDSCN1465https://limnowill.com/wp-content/uploads/2018/04/dscn1455.jpgDSCN1455https://limnowill.com/wp-content/uploads/2018/04/dscn1452.jpgDSCN1452https://limnowill.com/wp-content/uploads/2018/04/dscn1451.jpgDSCN1451https://limnowill.com/wp-content/uploads/2018/04/dscn1446.jpgDSCN1446https://limnowill.com/wp-content/uploads/2018/04/dscn1442.jpgDSCN1442https://limnowill.com/wp-content/uploads/2018/04/dscn1435.jpgDSCN1435https://limnowill.com/wp-content/uploads/2018/04/dscn1433.jpgDSCN14332018-07-19T16:54:34+00:00monthlyhttps://limnowill.com/2018/07/18/hera-debrief/https://limnowill.com/wp-content/uploads/2018/07/hera_xvii.pnghera_xviihttps://limnowill.com/wp-content/uploads/2018/07/hera_crew_egress.jpghera_crew_egress2018-07-19T16:53:49+00:00monthlyhttps://limnowill.com/2018/07/18/umass-geologists-in-greenland/https://limnowill.com/wp-content/uploads/2018/07/img_2089.jpgIMG_2089Hostel quarters in Narsarsuaq (Photo: JD)https://limnowill.com/wp-content/uploads/2018/07/p1010591.jpgP1010591JD untangles rope (again) at Lake SI-101 (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010522.jpgP1010522Isla sampling dirt on a rainy day (Photo: JD)https://limnowill.com/wp-content/uploads/2018/07/p1010491.jpgP1010491JD gets comfortable on the zodiak (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010482.jpgP1010482Ekman success (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010380.jpgP1010380Will and Boyang program the Hydrolab (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010373.jpgP1010373Taking shelter on a rainy day in a makeshift shelter (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010353.jpgP1010353Sample success! (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010345.jpgP1010345JD and Boyang haul in a sediment trap (Photo: IC)https://limnowill.com/wp-content/uploads/2018/07/p1010303.jpgP1010303Will and Boyang deploy the interval trap (Photo: IC)2018-07-19T16:53:04+00:00monthlyhttps://limnowill.com/2013/01/14/thermokarsts-and-the-burn/2018-07-19T16:13:11+00:00monthlyhttps://limnowill.com/2013/01/08/going-backwards/https://limnowill.com/wp-content/uploads/2018/04/taka.jpgtakaTaka mapping out the marble and interspersed layers and folds of resistant mineral types.https://limnowill.com/wp-content/uploads/2018/04/samstephniagra.jpgsamstephniagraStephanie and Samantha in their foul-weather gear on the Hurricane Deck. Bonus: we all got a pair of stylish sandels for taking the tour.https://limnowill.com/wp-content/uploads/2018/04/route.jpgrouteOur general driving routehttps://limnowill.com/wp-content/uploads/2018/04/ny_bedrock.jpgNY_bedrockFor your reference, here is a bedrock map of New York State.https://limnowill.com/wp-content/uploads/2018/04/niagera1.jpgniagera1It was loud and chaotic. This picture is from the Hurricane Deck of the Falls. The waterfall has migrated about 7 miles upstream in the last 12,000 yearshttps://limnowill.com/wp-content/uploads/2018/04/miguel.jpgmiguelMiguel happy about the cross-bedding he is standing on. Or maybe the color of the water. Or maybe being in America.https://limnowill.com/wp-content/uploads/2018/04/marble.jpgmarbleThese huge marble grains are bluish-gray due to slight amounts of impurities (graphite). The low outrcop is found along the Hudson River.https://limnowill.com/wp-content/uploads/2018/04/hurricanedeck1.jpghurricanedeck1The view from below the Hurricane Deck does not offer much reassurance. The entire structure is replaced annually - I'm not sure if I would love or hate that job.https://limnowill.com/wp-content/uploads/2018/04/group1.jpggroup1Atop Whiteface Mountainhttps://limnowill.com/wp-content/uploads/2018/04/glen2.jpgglen2The group checking out the walls of the Enfield Glen. I also recommend this area for casual day hikers.2018-07-19T16:12:48+00:00monthlyhttps://limnowill.com/2013/01/07/139/https://limnowill.com/wp-content/uploads/2018/04/axie1.jpgaxie12018-07-19T16:11:42+00:00monthlyhttps://limnowill.com/2013/08/14/arctic-alaska-2013/2018-07-19T16:10:22+00:00monthlyhttps://limnowill.com/2013/12/01/hurricane-hunting-in-the-succotash-salt-marsh/https://limnowill.com/wp-content/uploads/2018/04/img_3527.jpgIMG_35272018-07-19T16:09:21+00:00monthlyhttps://limnowill.com/2014/06/08/a-story-of-ice-and-mud/https://limnowill.com/wp-content/uploads/2018/04/corecaribou_fog2-1024x683.jpgCoreCaribou_Fog2 (1024x683)https://limnowill.com/wp-content/uploads/2018/04/caribou-1.jpgcaribou-1A herd of ~200 caribou on the move. These caribou are in a formation of two lines. They migrate toward the Arctic Ocean coast each spring.https://limnowill.com/wp-content/uploads/2018/04/arcticircle.jpgarcticircleThe team crossing the Arctic Circle on the Dalton Highway.2018-07-19T16:08:46+00:00monthlyhttps://limnowill.com/2014/07/17/spark-2014-a-week-of-extreme-weather-events/https://limnowill.com/wp-content/uploads/2018/04/succ6.jpgsucc6Tom Webb and post-doc Sarah Ivory check out the extruded sediment core.https://limnowill.com/wp-content/uploads/2018/04/succ5.jpgsucc5So much fun :)https://limnowill.com/wp-content/uploads/2018/04/succ4.jpgsucc4The crew faced some adversity - broken sediment core pipe. It took some serious muscle to get the core out of the ground.https://limnowill.com/wp-content/uploads/2018/04/succ3.jpgsucc3Evidence of ancient hurricanes!https://limnowill.com/wp-content/uploads/2018/04/succ2.jpgsucc2Prepping the vibracore for sediment recovery.https://limnowill.com/wp-content/uploads/2018/04/succ1.jpgsucc1Checking out some salt marsh life.https://limnowill.com/wp-content/uploads/2018/04/sling2.jpgsling2Swinging the sling psychrometer to measure wet bulb and dry bulb temperature. Together, these measurements tell us abou the dewpoint and relative humidity.https://limnowill.com/wp-content/uploads/2018/04/sling1.jpgsling1Dr. Webb demonstrates how to use a sling psychrometer to measure humidity.https://limnowill.com/wp-content/uploads/2018/04/class2.jpgclass2Lab prep.https://limnowill.com/wp-content/uploads/2018/04/class1.jpgclass1Downloading weather maps.2018-07-19T16:07:42+00:00monthlyhttps://limnowill.com/2014/09/22/providence-canoe-explorers-look-for-the-website-coming-soon/https://limnowill.com/wp-content/uploads/2018/04/willbog1.jpgwillbogLogs were abundant across the little stream, which made paddling difficult.https://limnowill.com/wp-content/uploads/2018/04/screen-shot-2014-09-22-at-9-14-42-pm1.pngScreen Shot 2014-09-22 at 9.14.42 PMBungay River Location in Attleboro, MAhttps://limnowill.com/wp-content/uploads/2018/04/sam11.jpgSam1A happy paddler in her new canoe.https://limnowill.com/wp-content/uploads/2018/04/perfect1.jpgperfectPerfecthttps://limnowill.com/wp-content/uploads/2018/04/happy1.jpghappyhttps://limnowill.com/wp-content/uploads/2018/04/chelseaandsam1.jpgchelseaAndSamOur entry point was the small tributary at the end of mary Kennedy Rd. Requires a small walk down a gravel driveway.https://limnowill.com/wp-content/uploads/2018/04/car1.jpgcarBova's Nova on the way to the Bungay River.2018-07-19T16:06:36+00:00monthlyhttps://limnowill.com/2015/03/08/wuhddah-winter/https://limnowill.com/wp-content/uploads/2018/04/orangeshirts.jpgorangeshirtsMatching Christmas shirts. Gross or cute? Either way, warm during a game of snow mini-golf.https://limnowill.com/wp-content/uploads/2018/04/golf10.jpggolf10https://limnowill.com/wp-content/uploads/2018/04/golf9.jpggolf9Fore!https://limnowill.com/wp-content/uploads/2018/04/golf8.jpggolf8Ky putts down the only land-based hole.https://limnowill.com/wp-content/uploads/2018/04/golf7.jpggolf7JD chooses an x-country ski to chip up the hill. Interesting choice, but highly effective.https://limnowill.com/wp-content/uploads/2018/04/golf6.jpggolf6Hole #6https://limnowill.com/wp-content/uploads/2018/04/golf5.jpggolf5The crowd gathers and the tension grows.https://limnowill.com/wp-content/uploads/2018/04/golf4.jpggolf4Hole #10 - The spiral of doom.https://limnowill.com/wp-content/uploads/2018/04/golf3.jpggolf3Hole #2https://limnowill.com/wp-content/uploads/2018/04/golf2.jpggolf2Hole #32018-07-19T16:06:05+00:00monthlyhttps://limnowill.com/2015/10/26/siders-pond-ancient-dna/https://limnowill.com/wp-content/uploads/2018/04/turkeybaster.jpgturkeybasterhttps://limnowill.com/wp-content/uploads/2018/04/sectioning.jpgsectioningThe goal of this coring endeavor is to use ancient DNA, preserved in a sediment core, to learn about how this pond has been impacted by residential development since the pilgrims arrived at Cape Cod. Here Longo, Morgan, and Steve, the three IGERT students, work to sample the sediment for DNA. The need to be verrrry clean and not sneeze on anything.https://limnowill.com/wp-content/uploads/2018/04/raftbuild3.jpgraftbuild3Here we are on the lawn of a science-friendly Falmouth resident, assembling our coring platform.https://limnowill.com/wp-content/uploads/2018/04/raftbuild2.jpgraftbuild2Our coring platform consists of two pontoon floats, metal crossbars, and 2x6's. It is very stable and plenty big for 4 workers.https://limnowill.com/wp-content/uploads/2018/04/morgan.jpgmorganMorgan loves sediment coring. But who doesn't.https://limnowill.com/wp-content/uploads/2018/04/fullcore.jpgfullcoreOur first core!! This 1 m of sediment represents appxorimately 500 years.https://limnowill.com/wp-content/uploads/2018/04/emptycore.jpgemptycoreWe have a barrel full of Siders Pond water, getting ready to push into the mud.https://limnowill.com/wp-content/uploads/2018/04/core.jpgcoreMorgan and Dr. Rand remove the core head from core IGERT15-1A-1.https://limnowill.com/wp-content/uploads/2018/04/anchordropping.jpganchordroppingAnne and Longo ferry the anchors about 30 m from the raft to help secure our position. Four HEAVY anchors usually does the trick.2018-07-19T16:05:30+00:00monthlyhttps://limnowill.com/2015/10/28/sediment-coring-ri-style/https://limnowill.com/wp-content/uploads/2018/04/spoonsample.jpgspoonsampleAs any phycologist or sediment scientist will tell you, a simple kitchen spoon is a critical piece of field equipment. Here, Allan samples surface sediment out of an Eckmen grab to be later analyzed for heavy metals and PAHs.https://limnowill.com/wp-content/uploads/2018/04/sampler.jpgsamplerAllan Huang and Ndubisi Ohah (aka Junior) contemplate getting their hands muddy after a successful benthic grab sample.https://limnowill.com/wp-content/uploads/2018/04/raftbuilding.jpgraftbuildingConstructing a raft out of two canoes, two 2x6's, and a central coring board. Simple yet effective.https://limnowill.com/wp-content/uploads/2018/04/portage.jpgportageJunior rocks his first canoe portage.https://limnowill.com/wp-content/uploads/2018/04/paddlers.jpgpaddlersPaddling to the coring site near the historic Roger Williams Casino. These students want to test the spatial distribution of heavy metals and polycyclic aromatic hydrocarbons (PAHs), especially in relation to roadways, parking lots, and historic buildings. Their classmates did similar studies on benthic invertebrates and fish, to see if these contaminants make it into the foodweb.https://limnowill.com/wp-content/uploads/2018/04/map.pngmapArial vew of the RWP pond system. Arrows indicate direction of flow. Colored points are sediment sampling locations. (map from Matt Griffin; Brown University Chem1660)2018-07-19T16:05:00+00:00monthlyhttps://limnowill.com/2015/11/01/watershed-watch-cunliffe-pond/https://limnowill.com/wp-content/uploads/2018/04/sarahdo.jpgsarahDOGeology post-doctoral fellow Sarah Ivory prepares to deploy the water sampler.https://limnowill.com/wp-content/uploads/2018/04/chlorophyll.jpgchlorophyllSupplies for filtering phytoplankton from water samples. The filters are then frozen and sent to URI for analysis of chlorophyll a content.https://limnowill.com/wp-content/uploads/2018/04/carriewinkler3.jpgcarriewinkler3Visiting scholar Carolynn Harris volunteering to measure dissolved oxygen concentration using a Hach kit. Here she is adding starch color indicator.https://limnowill.com/wp-content/uploads/2018/04/allisonsecchi.jpgallisonsecchiBrown geology undergraduate, Allison Cluett, measures the secchi depth from the canoe.https://limnowill.com/wp-content/uploads/2018/04/slide11.jpgSlide1Map of the ponds within Roger Williams Park (inset shows location of RWP within Rhode Island). We monitor Cunliffe Pond.https://limnowill.com/wp-content/uploads/2018/04/slide5.jpgSlide5Dissolved oxygen levels were variable, but generally lower during mid-summer due to higher water temperatures, and greater respiration related to high algae biomass. DO never dropped to critical levels for the bass population in the pond.https://limnowill.com/wp-content/uploads/2018/04/slide4.jpgSlide4Secchi depth information also reveals a seasonal progression. We noticed abundance submerged aquatic vegetation and clear water in May (high secchi), which was replaced by phytoplankton in June-August (low secchi, high chlorophyll a). Cyanobacteria (mostly anabaena) blooms were evident in mid-summer, but dissipated in the fall.https://limnowill.com/wp-content/uploads/2018/04/slide2.jpgSlide2Surface water temperature, measured weekly, shows a nice seasonal progression from May through October. Warmest temperatures are approximately 28 °C.2018-07-19T16:04:32+00:00monthlyhttps://limnowill.com/2015/11/05/kaktovik-oceanography-program-2015/https://limnowill.com/wp-content/uploads/2018/04/zodiak-greta.jpgzodiak-gretaI also spent one evening helping the UT hydrology crew collect some sediment cores from Kaktovik Lagoon. Here we are taking the zodiak across the bay to the sampling site. We were testing if or how far fresh groundwater can penetrate through sediment to the center of the lagoon. We actually found extremly hypersaline pore water in our offshore core (60-70 ppt). (photo: Greta Burkhardt)https://limnowill.com/wp-content/uploads/2018/04/ysi.jpgysiUsing a YSI instrument to measure temperature and salinity in Kaktovik Lagoon.https://limnowill.com/wp-content/uploads/2018/04/vandorn.jpgvandornTransferring water from the Van Dorn sampler into a sample bottle, to be analyzed for nitrate and pH in the classroom.https://limnowill.com/wp-content/uploads/2018/04/town-ken.jpgtown-kenA view of Kaktovik, AK and the Brooks Range mountains. Stunning.https://limnowill.com/wp-content/uploads/2018/04/smokedfish.jpgsmokedfishA smokehouse in Kaktovik. Smoked fish is a staple food for many people. This room smelled sooo delicious. This is mostly Arctic Char.https://limnowill.com/wp-content/uploads/2018/04/seining.jpgseiningHere we are seining along the shore outside of the lagoon barrier. Don't walk deeper than the waders! Students found much fewer fish (and no flounder) outside the lagoon compared to within the lagoon.https://limnowill.com/wp-content/uploads/2018/04/seaice.jpgseaiceArctic Sea Ice. The ice was quite patchy near the coast, but was quite beatufiul. It ranged from bright white to quite dirty/dark.https://limnowill.com/wp-content/uploads/2018/04/schoolroom.jpgschoolroomCliff, Carrie, and Christina teaching in the Harold Kaveolook School. (photo: Greta Burkardt)https://limnowill.com/wp-content/uploads/2018/04/polygons.jpgpolygonsMore polygons and thaw lakes from the coastal region of northern Alaska.https://limnowill.com/wp-content/uploads/2018/04/nanook-bayani.jpgNanook-bayaniNanook is the Inupiat word for polar bear. Here is a mother and her two 2-year old cubs. (photo: Bayani Cardenas)2018-07-19T16:03:29+00:00monthlyhttps://limnowill.com/2016/04/01/limnology-field-trip-part-i/https://limnowill.com/wp-content/uploads/2018/04/dscn18261.jpgDSCN1826Brown University Limnology class, 2016 (Well, half the class anyway. The other half of the class will sample Pout Pond from a boat later this semester).https://limnowill.com/wp-content/uploads/2018/04/dscn18221.jpgDSCN1822Yinsui uses a kemmerer water sampler to collect water from 1 m depth increments. The vertical profiles of water chemistry, temperature, etc. can tell a lot about the state of a lake. For example, in 10 years limnology field trips, Pout Pond has remained permanently stratified, with a salty, dense layer of water at the bottom. Lakes with permanent stratification are called meromictic.https://limnowill.com/wp-content/uploads/2018/04/dscn18111.jpgDSCN1811Patrick measuring alkalinity using a colorometric test kit.https://limnowill.com/wp-content/uploads/2018/04/dscn17981.jpgDSCN1798Patrick, Nick, and Rebecca collecting water samples.https://limnowill.com/wp-content/uploads/2018/04/dscn17861.jpgDSCN1786Alkalinity titrations.https://limnowill.com/wp-content/uploads/2018/04/dscn17831.jpgDSCN1783The class samples Pout Pond in Belmont, NH on a beautiful winter day.https://limnowill.com/wp-content/uploads/2018/04/dscn17751.jpgDSCN1775Yinsui and Sydney filtering water for anion, cation, and nutrient analyses.https://limnowill.com/wp-content/uploads/2018/04/dscn17641.jpgDSCN1764What's the secchi depth, Jim?2018-07-19T16:01:56+00:00monthlyhttps://limnowill.com/2016/04/03/spring-2016-sediment-coring-in-rhode-island/https://limnowill.com/wp-content/uploads/2018/04/dscn1887.jpgDSCN1887Two sediment cores collected from Swan Point/Bollard's Point on the Seekonk River.https://limnowill.com/wp-content/uploads/2018/04/dscn1878.jpgDSCN1878Brown geology graduate student Sydney Clark holds a sediment core from the Seekonk River. Sydney is investigating Nitrogen pollution in Narragansett Bay, and in particular if the upgrades to the Swan Point wastewater treatment were helpful in reducing nitrogen levels in the bay. Sydney specializes in nitrogen isotopes is studying in the lab of Meredith Hastings.https://limnowill.com/wp-content/uploads/2018/04/dscn1874.jpgDSCN1874Sydney gets a sediment core from the canoe.https://limnowill.com/wp-content/uploads/2018/04/dscn1858.jpgDSCN1858Stephanie caps and cleans the salt marsh core. This core contains three discrete sand layers which were deposited when a hurricane made landfall and pushed the beach sand up into the marsh.https://limnowill.com/wp-content/uploads/2018/04/dscn1855.jpgDSCN1855Stephanie is teaching her class about past climate change. These salt marsh sediments record the history of hurricane impacts on the area.https://limnowill.com/wp-content/uploads/2018/04/dscn1843.jpgDSCN1843Stephanie pounds the core tubing into the marsh sediments.https://limnowill.com/wp-content/uploads/2018/04/dscn1838.jpgDSCN1838Chris pounds the core tubing into the marsh.https://limnowill.com/wp-content/uploads/2018/04/dscn1837.jpgDSCN1837Chris pounds the core tubing into the marsh.2018-07-19T15:59:51+00:00monthlyhttps://limnowill.com/2015/11/10/blood-moon-from-appropriately-transit-st/https://limnowill.com/wp-content/uploads/2018/04/moon4.jpgmoon4The Blood Moon.https://limnowill.com/wp-content/uploads/2018/04/moon3.jpgmoon3Just about fully eclipsedhttps://limnowill.com/wp-content/uploads/2018/04/moon1.jpgmoon1The start of the lunar eclipse2018-04-09T12:41:32+00:00monthlyhttps://limnowill.com/2013/01/14/2012-warmest-year-on-record-in-us/https://limnowill.com/wp-content/uploads/2018/04/us_jan-dec2012_tempanom_300.jpgUS_Jan-Dec2012_tempanom_300Difference from average annual temperature in 2012 compared to the 1981–2010 average. Map by NOAA climate.gov team.2018-04-07T12:06:58+00:00monthlyhttps://limnowill.com/2013/02/01/arctic-axolotls-arctilotls/2018-04-07T12:06:38+00:00monthlyhttps://limnowill.com/2013/10/08/little-sippewissett-microbes/https://limnowill.com/wp-content/uploads/2018/04/rich4.jpgrich4Back at the MBL, we extracted DNA, amplified 4 genes of interest, and ran gel electrophoresis. Professor Amaral-Zettler overlooks the PCR preperation which requires great care not to contaminate the sample with foreign DNA. (photo by J. Rich)https://limnowill.com/wp-content/uploads/2018/04/rich3.jpgrich3We saw cyanobacteria, rotifers, nematodes, and a ton of diatoms in the field scopes. (photo by J. Rich)https://limnowill.com/wp-content/uploads/2018/04/rich2.jpgrich2(photo by J. Rich)https://limnowill.com/wp-content/uploads/2018/04/rich1.jpgrich1There might be some bacteria over there. (photo by J. Rich)https://limnowill.com/wp-content/uploads/2018/04/microbes-are-cool-geomicrbiology-62.jpgIMG_5722GeoMicroBio in the marsh (photo by E. Zettler)https://limnowill.com/wp-content/uploads/2018/04/gina9.jpggina9https://limnowill.com/wp-content/uploads/2018/04/gina8.jpggina8Field microscopes are so cool! These little microscopes use natural sunlight for on-the-spot IDs. (photo by G. Roberti)https://limnowill.com/wp-content/uploads/2018/04/gina7.jpggina7More mat. This probably contains a layer of cyanobacteria, sulfide oxidizers and sulfate reducers all within a few millimeters. (photo by G. Roberti)https://limnowill.com/wp-content/uploads/2018/04/gina6.jpggina6Yinsui, Katie, and I with our samples for DNA extraction. (photo by G. Robert)https://limnowill.com/wp-content/uploads/2018/04/gina5.jpggina5JJ soaking in the hydrogen sulfide. (photo by G. Roberti)2018-04-07T12:05:31+00:00monthlyhttps://limnowill.com/2014/06/06/hold-the-anchovies/https://limnowill.com/wp-content/uploads/2018/04/pizza2-no-words.jpgpizza2-no-wordsPhotoshop Credit: Gwen Daniels2018-04-07T12:04:22+00:00monthlyhttps://limnowill.com/2014/09/14/ri-lakes/https://limnowill.com/wp-content/uploads/2018/04/slide1.jpgSlide12018-04-07T12:03:45+00:00monthlyhttps://limnowill.com/2015/01/20/orienteering-meet-may-31-lincoln-woods/https://limnowill.com/wp-content/uploads/2018/04/timgoudge.jpgTimGoudgehttps://limnowill.com/wp-content/uploads/2018/04/timbooth.jpgTimBoothhttps://limnowill.com/wp-content/uploads/2018/04/riwalkers.jpgRIwalkershttps://limnowill.com/wp-content/uploads/2018/04/moose.jpgmoosehttps://limnowill.com/wp-content/uploads/2018/04/cape.jpgcape2018-04-07T12:03:25+00:00monthlyhttps://limnowill.com/2015/03/09/axolotl-day/2018-04-07T12:03:05+00:00monthlyhttps://limnowill.com/2015/10/23/aslo-2015-granada-spain/2018-04-07T12:02:54+00:00monthlyhttps://limnowill.com/blog/2018-04-06T17:10:48+00:00weekly0.6https://limnowill.comdaily1.02022-04-17T14:02:52+00:00