John Halfman
Hobart & William Smith Colleges, Geneva, NY
Activity
2023
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NUTRIENT AND SEDIMENT LOADING IN THE OWASCO WATERSHED, NEW YORK
25 Soil, Water, and Biogeochemical InteractionsSaturday, 18 March 20238:00 AM - 12:00 PMLake Fairfax
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CHLORIDE HYDROGEOCHEMISTRY OF THE FINGER LAKES, NY
28 Undergraduate Research Poster Session II (Posters)Saturday, 18 March 20238:00 AM - 12:00 PMGrand Ballroom A–D
2018
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BLUE GREEN ALGAE (BGA) AND HABS IN THE FINGER LAKES, NY, USA
33 Lake Research and Monitoring Networks in the Northeast (Posters)Monday, 19 March 20188:00 AM - 12:00 PMLake Champlain Exhibition Hall
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BLUE GREEN ALGAE AND MACROPHYTE SURVEILLANCE BY DRONES (UAVS) IN OWASCO LAKE, NY
33 Lake Research and Monitoring Networks in the Northeast (Posters)Monday, 19 March 20188:00 AM - 12:00 PMLake Champlain Exhibition Hall
2016
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MERCURY CONCENTRATIONS IN AQUATIC FOOD WEBS OF THE FINGER LAKES, NEW YORK
41 Trace Metals in the EnvironmentTuesday, 22 March 20161:30 PM - 5:30 PMMeeting Room 1
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THE OWASCO LAKE BUOY PROJECT: INTRODUCING HIGH SCHOOL STUDENTS TO WATER QUALITY MONITORING OF OWASCO AND SENECA LAKES
11 Connecting K–12 and Higher Education: What Teachers Need, What Faculty Can Offer (Posters)Monday, 21 March 20168:00 AM - 12:00 PMConvention Hall
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PHOSPHORUS AND SEDIMENT VARIABILITY ALONG DUTCH HOLLOW BROOK IN THE OWASCO LAKE WATERSHED, CENTRAL NEW YORK
6 Environmental Geoscience (Posters)Monday, 21 March 20168:00 AM - 12:00 PMConvention Hall
2015
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THE CHLORIDE HYDROGEOCHEMISTRY OF SENECA LAKE, NY, USA
T298 Lakes of the World (Posters)Wednesday, 4 November 20159:00 AM - 6:30 PMExhibit Hall
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AN UPDATE ON THE CHLORIDE HYDROGEOCHEMISTRY IN SENECA LAKE, NY
41 Limnological Records in Past, Present, and Future Climates (Posters)Tuesday, 24 March 20158:00 AM - 12:00 PMPresidential Ballroom
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RELATIONSHIP BETWEEN DIATOM PRESENCE AND DISSOLVED SILICA IN THE FINGER LAKES, NY (USA)
41 Limnological Records in Past, Present, and Future Climates (Posters)Tuesday, 24 March 20158:00 AM - 12:00 PMPresidential Ballroom
2013
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PRECIPITATION INDUCED NUTRIENT LOADING VARIABILITY BETWEEN TWO TRIBUTARIES IN THE OWASCO LAKE WATERSHED, CENTRAL NEW YORK
32 Environmental Geoscience (Posters)Sunday, 27 October 20139:00 AM - 6:30 PMHall D
2012
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SEGMENT ANALYSIS OF CASTLE CREEK, A SMALL, URBAN & AGRICULTURAL WATERSHED, GENEVA, NEW YORK
T238 Geochemistry of Urban Environments (Posters)Wednesday, 7 November 20129:00 AM - 6:00 PMHall B
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A TWO-YEAR COMPARISON OF NUTRIENT FLUXES IN DUTCH HOLLOW BROOK, OWASCO WATERSHED, CENTRAL NEW YORK
T245 Hydrology of Urban Groundwater, Streams, and Watersheds (Posters)Wednesday, 7 November 20129:00 AM - 6:00 PMHall B
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COMPARISON OF TWO TRIBUTARIES TO OWASCO LAKE, NEW YORK, FROM 2011 TO 2012
T178 Lake Systems Through Space and Time (Posters)Tuesday, 6 November 20129:00 AM - 6:00 PMHall B
2011
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NUTRIENT LOADING IN THE OWASCO LAKE WATERSHED: RESULTS FROM AN AUTONOMOUS SAMPLER, R2D2
T189 Limnogeology: Interdisciplinary Studies of Lakes and Paleolakes (Posters)Tuesday, 11 October 20119:00 AM - 6:00 PMHall C
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IDENTIFICATION OF NUTRIENT SOURCES IN TWO OWASCO LAKE TRIBUTARIES
T189 Limnogeology: Interdisciplinary Studies of Lakes and Paleolakes (Posters)Tuesday, 11 October 20119:00 AM - 6:00 PMHall C
2010
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WATER QUALITY DEGRADATION IN SENECA LAKE, NEW YORK
T17 Temporal Trends in Anthropogenic Contaminants from Lacustrine, Coastal, and Marine Sediment Cores: The Good, the Bad, and the FutureSunday, 31 October 20108:00 AM - 12:00 PMMile High Ballroom 1CD
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PRECIPITATION, NUTRIENT LOADING AND WATER QUALITY TRENDS IN THE FINGER LAKES OF NEW YORK
79 Environmental Geoscience and Health (Posters)Tuesday, 16 March 20101:30 PM - 5:35 PMInternational ABCDF
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HONEOYE LAKE, NEW YORK: THE ANOMALOUS FINGER LAKE
79 Environmental Geoscience and Health (Posters)Tuesday, 16 March 20101:30 PM - 5:35 PMInternational ABCDF
2009
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SENECA LAKE, AN IDEAL NATURAL LABORATORY FOR RESEARCH, EDUCATION AND OUTREACH
57 Using Monitoring Data to Influence Management and Conservation of Aquatic Ecosystems: Maine Water Conference SessionTuesday, 24 March 20091:00 PM - 5:00 PM
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THE FINGER LAKES OF NEW YORK: AN IDEAL NATURAL LABORATORY FOR RESEARCH, EDUCATION AND OUTREACH
57 Using Monitoring Data to Influence Management and Conservation of Aquatic Ecosystems: Maine Water Conference SessionTuesday, 24 March 20091:00 PM - 5:00 PM
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INFERRING REGIONAL AND LOCAL SOURCES OF MERCURY TO THE SEDIMENTS OF SENECA LAKE, NEW YORK
4 From Road Salt to Arsenic and Other Environmental Contaminants in Hydrologic Systems ISunday, 22 March 20098:10 AM - 12:00 PM
2007
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WHAT HAPPENED TO OUR LAKE? NUTRIENT LOADING IN OWASCO LAKE AND ITS WATERSHED
81 Environmental Geoscience; Geology and Health; Public Policy II: Environmental Geology for Public Use and Biogeochemistry (Posters)Monday, 29 October 20078:00 AM - 12:00 PM
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DECREASING SALINITY IN SENECA LAKE, NEW YORK
81 Environmental Geoscience; Geology and Health; Public Policy II: Environmental Geology for Public Use and Biogeochemistry (Posters)Monday, 29 October 20078:00 AM - 12:00 PM
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A DECADE OF INCREASING PRODUCTIVITY IN THE SENECA LAKE WATERSHED
81 Environmental Geoscience; Geology and Health; Public Policy II: Environmental Geology for Public Use and Biogeochemistry (Posters)Monday, 29 October 20078:00 AM - 12:00 PM
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WATER QUALITY OF OWASCO LAKE, CENTRAL NEW YORK: THE 2006 LAKE SURVEY
48 Environmental Geoscience (Posters)Wednesday, 14 March 20078:15 AM - 12:00 PM
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WATER QUALITY OF OWASCO LAKE, CENTRAL NEW YORK: THE 2006 WATERSHED SURVEY
48 Environmental Geoscience (Posters)Wednesday, 14 March 20078:15 AM - 12:00 PM
2006
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SENECA LAKE, AN IDEAL NATURAL LABORATORY FOR RESEARCH, EDUCATION AND OUTREACH
T8 Innovative Watershed Based Approaches for Integrating Research and EducationSunday, 22 October 20068:00 AM - 12:00 PM
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ARE WINTER DE-ICING APPLICATIONS THE PRIMARY SOURCE OF CHLORIDE TO THE FINGER LAKES OF CENTRAL AND WESTERN NEW YORK?
50 Environmental Geoscience (Posters)Sunday, 22 October 20061:30 PM - 5:30 PM
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WATER QUALITY ANALYSIS IN THE SENECA LAKE WATERSHED, NY
50 Environmental Geoscience (Posters)Sunday, 22 October 20061:30 PM - 5:30 PM
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SEASONAL DISTRIBUTION OF PLANKTON SPECIES AMONG SEVEN FINGER LAKES IN NEW YORK STATE
50 Environmental Geoscience (Posters)Sunday, 22 October 20061:30 PM - 5:30 PM
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A SEDIMENT RECORD OF MAJOR STORM EVENTS FROM KEUKA LAKE, NEW YORK
T28 Core Analysis of Lake Sediments (Posters)Sunday, 22 October 20068:00 AM - 12:00 PM
2005
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WHEN BACTERIA ATTACKS: KEUKA OUTLET, NEW YORK
156 Environmental Geoscience (Posters)Tuesday, 18 October 20058:00 AM - 12:00 PM
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WATER QUALITY ANALYSIS OF THE FINGER LAKES, NEW YORK
156 Environmental Geoscience (Posters)Tuesday, 18 October 20058:00 AM - 12:00 PM
2004
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A HYDROGEOCHEMICAL STUDY OF A WATER RETENTION BASIN, ODELL’S POND
212 Environmental Geoscience (Posters) IWednesday, 10 November 20048:00 AM - 12:00 PM
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PRELIMINARY HYDROGEOCHEMICAL BUDGETS FOR SENECA LAKE, NY
212 Environmental Geoscience (Posters) IWednesday, 10 November 20048:00 AM - 12:00 PM
2002
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INFLUENCE OF SEDIMENTOLOGICAL FACTORS ON THE DISTRIBUTION OF DIPOREIA AND DREISSENA SPECIES IN LAKE ONTARIO
7 Undergraduate Research in the Geological Sciences I (Posters)Monday, 25 March 20028:00 AM - 12:00 PM
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NITRATE LOADING IN THE SENECA LAKE WATERSHED
7 Undergraduate Research in the Geological Sciences I (Posters)Monday, 25 March 20028:00 AM - 12:00 PM
2001
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SENECA LAKE WATERSHED: AN IDEAL HYDROGEOCHEMICAL NATURAL LABORATORY
102 Geoscience Education (Posters)Wednesday, 7 November 20018:00 AM - 12:00 PM
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ENVIRONMENTAL SYSTEM TRANSITION AT THE MID-HOLOCENE HYPSITHERMAL: EVIDENCE FROM THE SEDIMENT OF SENECA LAKE, NY
8 Paleoclimatology/Paleoceanography IMonday, 5 November 20018:00 AM - 12:00 PM
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CLIMATE TRANSITION DURING THE MID-HOLOCENE: EVIDENCE FROM THE SEDIMENT OF SENECA LAKE, NEW YORK
31 Paleolimnological Records of Holocene Climate Change (Posters)Tuesday, 13 March 20011:30 PM - 5:00 PM
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THE HWS DATA LOGGER AND HYDROLOGICAL FIELD STUDIES
14 Undergraduate Research II (Sponsored by Geology Division, Council on Undergraduate Research) (Posters)Monday, 12 March 20011:30 PM - 5:00 PM
Date Unknown
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BACTERIAL AND NUTRIENT WATER QUALITY SURVEY OF THE KEUKA OUTLET, SENECA LAKE WATERSHED, NY
58 Undergraduate Research (Posters) II
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A PRACTICAL, TRAILERABLE LIMNOLOGICAL RESEARCH VESSEL FOR THE FINGER LAKES INSTITUTE
119 Limnogeology (Posters)
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ASSESSING IN THE ROLE OF WATERSHED AREA AND LANDUSE ON NUTRIENT AND SUSPENDED SEDIMENT FLUX TO SENECA LAKE, NY
116 Environmental Geoscience (Posters) II
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INTRUSION OF SALINE GROUNDWATER INTO SENECA LAKE, NEW YORK
116 Environmental Geoscience (Posters) II
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SEDIMENTOLOGICAL CONTROLS ON THE DISTRIBUTION OF DIPOREIA AND DREISSENA SPECIES IN LAKE ONTARIO
116 Environmental Geoscience (Posters) II
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A PRELIMINARY CALCIUM BUDGET FOR SENECA LAKE, NEW YORK: FLUVIAL INPUTS AND PROBABLE REMOVAL MECHANISMS
81 Environmental Geoscience (Posters) I
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PRELIMINARY INSPECTION OF WATER QUALITY USING TOTAL COLIFORM AND E.COLI BACTERIA IN THE SENECA LAKE WATERSHED, NY
81 Environmental Geoscience (Posters) I
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THE IMPACT OF LARGE PRECIPITATION EVENTS ON NUTRIENT RUNOFF TO SENECA LAKE, NY
81 Environmental Geoscience (Posters) I
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A COMPARISON OF CHLOROPHYLL-A PATCHINESS IN KIGOMA BAY, LAKE TANGANYIKA AFRICA AND SENECA LAKE, GENEVA NEW YORK
151 Environmental Geoscience (Posters)
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WATER QUALITY ANALYSIS AND SOURCES OF TOTAL COLIFORM AND E. COLI BACTERIA IN THE SENECA LAKE, NY, WATERSHED
19 Undergraduate Research (Posters) II
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SPATIAL AND TEMPORAL TRENDS IN MAJOR ION CONCENTRATIONS FROM THE FINGER LAKES, NY
19 Undergraduate Research (Posters) II
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WATER QUALITY ANALYSES AND WATERSHED PROTECTION IN THE FINGER LAKES, NEW YORK
36 Contaminants in Groundwater and Surface Water of the Northeast: From Arsenic to Xylene (Posters)
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A NEW 12-BIT/16K VERSION OF THE HOBART AND WILLIAM SMITH DATALOGGER--BETTER RESOLUTION AND MORE DATA!
185 Environmental Geoscience (Posters) III
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ARE HISTORICAL CHLORIDE DATA INCONSISTENT WITH SALINE GROUNDWATER INTRUSIONS IN SENECA LAKE, NEW YORK?
36 Contaminants in Groundwater and Surface Water of the Northeast: From Arsenic to Xylene (Posters)
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SEISMIC STRATIGRAPHY AND DEPOSITIONAL ARCHITECTURE OF HOLOCENE SEDIMENT IN KEUKA LAKE, NY
159 Paleoclimatology/Paleoceanography (Posters)
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GETTING TO THE BOTTOM OF IT: HOLOCENE CLIMATE CHANGE IN KEUKA LAKE BASED ON SEDIMENT CORES
19 New Developments in the Late Quaternary History and Climate of the Northeastern United States and Eastern Canada (Posters)