Global Change Master Directorygsfc-gcmduso@mail.nasa.gov502013-05-22T03:39:42Zamd_nz Search: Parameters|TERRESTRIAL HYDROSPHEREhttp://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 117 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2008_2012_NZ_5Community composition survey at Terra Nova Bay with similar samples collected at Cape Evans Cape Armitage and Turtle Rock164.1231,-72.695,164.1231,-72.695166.399,-77.636,166.399,-77.636166.635,-77.851,166.635,-77.851166.4,-77.633,166.4,-77.633166.7757,-77.7443,166.7757,-77.7443166.24,-77.38,166.24,-77.38164.13,-74.38,164.13,-74.382008-11-24T00:00:00ZT00:00:00Z2012-06-29T04:00:00ZFive ice cores were collected from Terra Nova bay in the vicinity of Gondwana station. From each core the top, middle and bottom sections were sectioned and processed as described earlier. In addition, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K025_2011_2012_NZ_3Biodiversity, Dynamics and Metabolics of Heterogeneous Meltwater Ponds165.54144,-78.01649,165.55963,-78.014312012-01-13T00:00:00Z2012-01-18T00:00:00Z2012-06-11T04:00:00ZMicrobial biodiversity and community dynamics within and between selected melt water ponds near Bratina Is will help to identify environmental drivers within ponds. Research will examine the metabolic ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K081_2009_2010_NZ_1Characterisation of aquatic resources in McMurdo Sound region of Antarctica: water chemistry, biological identity and genomic samples159.0,-80.0,166.69,-77.32009-12-24T00:00:00Z2010-01-19T00:00:00Z2010-10-10T00:00:00Z2011-01-15T00:00:00Z2012-01-10T00:00:00Z2012-01-23T00:00:00Z2012-02-07T05:00:00ZAquatic environments in Antarctica have changes over time with a changing climate. Small aquatic zones on the surface of glaciers ablation zones are comparatively constant and represent perhaps the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_4Changes in the cliff face (retreat) at a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZA change in the position of the supraglacial channel cliff faces of the Wright Lower Glacier was investigated over three field seasons (04-05, 05-06 and 06-07). The volume of ice lost due to cliff ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_2Determining the source of melt water at a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZThe seasonal melt regime of the Wright Lower Glacier, Wright Valley, Dry Valleys, Antarctica was investigated and monitored over three field seasons (04-05, 05-06 and 06-07). Melt water samples were ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_3Investigation into cryoconite holes at a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZInvestigation into cryoconite hole chemistry, surface area cover and construction was investigated as part of wider project looking at the seasonal melt regime of the Wright Lower Glacier. Chemistry: ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_1Measurements of albation rates at a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZThe average annual ablation rate of the Wright Lower Glacier, Wright Valley, was determined over three field seasons (04-05, 05-06 and 06-07) as part of an investigation into the seasonal melt regime ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K081_2007_2008_NZ_3Meltwater geochemistry and biological characteristics of the Darwin Glacier region of Antarctica156.0,-80.0,160.0,-79.02009-01-13T00:00:00Z2009-01-29T00:00:00Z2010-09-29T04:00:00ZFreshwater ponds have long been recognised as an important local biodiversity element in the Antarctic landscape. A suite of relatively easily measured chemical and biological variables that provide ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_5Meterological data at a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZMeterological information was measured at a temporary station on the surface of the Wright Lower Glacier. This station was erected in Nov 2004 and recorded air temperature, ablation at hourly intervals ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_7The albedo and ice transmissity at a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZThe albedo of the Wright Lower Glacier was monitored over two seasons (05-06 and 06-07) to help determine the seasonal melt regime of the glacier by using data from a climate station and manual measurements ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZ_6The amount of melt water from a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZThe seasonal melt regime of the Wright Lower Glacier, Wright Valley, Dry Valleys, Antarctica was investigated and monitored over three field seasons (04-05, 05-06 and 06-07). An appreciation of the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K064_2004_2007_NZThe hydrology (pattern of flow and composition of meltwater) of a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica162.5,-77.5,163.3,-77.32004-11-19T00:00:00Z2004-12-14T00:00:00Z2005-10-29T00:00:00Z2006-01-09T00:00:00Z2007-01-02T00:00:00Z2007-02-04T00:00:00Z2010-09-29T04:00:00ZThe seasonal melt regime of the Wright Lower Glacier, Wright Valley, Dry Valleys, Antarctica was investigated and monitored over three field seasons (04-05, 05-06 and 06-07). The water cycle, which ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2008_2009_NZ_2The biomass, productivity and biodiversity of algae and bacteria in Granite Harbour and the physical parameters of their environment162.89,-77.015,162.89,-77.0152008-11-15T00:00:00Z2008-11-27T00:00:00Z2009-11-16T00:00:00Z2009-12-29T00:00:00Z2010-09-20T04:00:00ZThe total biomass, productivity and biodiversity of algae and bacteria from the sea ice and the water column was investigated in Granite Harbour. Sampling sites in the Granite Harbour area were used ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2007_2008_NZ_1The biomass, productivity, physiology and grazing pressures of phytoplankton during the polar winter in the Ross Sea region166.6667,-77.85,166.6667,-77.85166.4,-77.6333,166.4,-77.63332007-08-24T00:00:00Z2007-09-27T00:00:00Z2008-09-04T00:00:00Z2008-10-05T00:00:00Z2009-08-25T00:00:00Z2009-10-09T00:00:00Z2010-09-20T04:00:00ZWhat happens to primary production during the long polar night was investigated in the Ross Sea region. Phytoplankton samples were obtained from the water column at Cape Armitage and Cape Evans. Phytoplankton ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2008_2009_NZ_3The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Granite Harbour162.89,-77.015,162.89,-77.0152008-11-15T00:00:00Z2008-11-27T00:00:00Z2009-11-16T00:00:00Z2009-12-29T00:00:00Z2010-09-20T04:00:00ZIn the 2008/2009 season, samples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K081_2005_2006_NZ_1Microbial mat development and production variation in relation to physio-chemical variation in 13 ponds that all originated from one greater pond near Bratina Island on the McMurdo Ice Shelf165.3333,-78.0,165.3333,-78.02005-12-19T00:00:00Z2005-12-28T00:00:00Z2010-08-30T04:00:00ZMicrobial mat development and production varies from pond to pond due to the physio-chemical variation amongst the ponds. To study this variation a series of 13 ponds were selected that had originated ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K081_2005_2006_NZ_2Sampling based chemical and biogeochemical stratification profiles of melt water ponds at Bratina Island, McMurdo Ice Shelf165.3333,-78.0,165.3333,-78.02005-12-19T00:00:00Z2005-12-28T00:00:00Z2007-01-16T00:00:00Z2007-01-29T00:00:00Z2010-02-23T05:00:00ZA comprehensive suite of geochemical samples and measurements from a selection of meltwater ponds at Bratina Island was collected in the 2005/06 and 2006/07 seasons. The purpose was to help identify ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K123_2003_2005_NZ_1Soil and groundwater description, characterisation and sampling at various sites at Cape Hallett170.2167,-72.3167,170.2167,-72.31672003-12-12T00:00:00Z2004-01-21T00:00:00Z2004-12-03T00:00:00Z2005-01-21T00:00:00Z2010-02-23T05:00:00ZThe soil and groundwater at Seabee Hook, Cape Hallet was described and characterised. Soil Investigation: Soil pits were dug east of Willett Cove on low mounds on disturbed and undisturbed sites, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2003_2005_NZ_2The bacterial biomass of sea ice from Seabees Hook, Cape Hallett region170.2666,-72.3166,170.2666,-72.31662003-11-19T00:00:00Z2003-12-16T00:00:00Z2004-11-12T00:00:00Z2004-12-07T00:00:00Z2010-02-23T05:00:00ZA taxonomic assessment of sea ice bacteria abundance and their response to climate induced stress was investigated from the sea ice around Seabee Hook, Cape Hallett. Four sites at different points ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2006_2008_NZ_1The biomass, productivity and biodiversity of algae and bacteria in Terra Nova Bay and the physical parameters of their environment164.5,-74.8333,164.5,-74.83332006-11-03T00:00:00Z2006-12-09T00:00:00Z2007-11-10T00:00:00Z2007-12-10T00:00:00Z2010-02-23T05:00:00ZThe total biomass, productivity and biodiversity of algae and bacteria from the sea ice and the water column was investigated in Terra Nova Bay. Sampling sites in the Terra Nova Bay area were used ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K046_1988_1991_NZ_1The hydrology, glaciology and sediment transport monitoring of the glacial-river-lake system in the Miers Valley, Antarctica164.0,-78.1,164.0,-78.11988-11-14T00:00:00Z1989-01-23T00:00:00Z1989-11-13T00:00:00Z1990-01-29T00:00:00Z2010-02-23T05:00:00ZA three year hydrological, glaciological and sediment transport monitoring programme was conducted in the Miers Valley. The energy and mass balances of the glacier-river-lake system was investigated ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2006_2008_NZ_4The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Terra Nova Bay164.5,-74.8333,164.5,-74.83332006-11-03T00:00:00Z2006-12-09T00:00:00Z2007-11-10T00:00:00Z2007-12-10T00:00:00Z2010-02-23T05:00:00ZSamples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM rapid light curves to determine ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K043_2008_2009_NZ_5Community composition survey at Terra Nova Bay with similar samples collected at Cape Evans and Cape Armitage164.1231,-72.695,164.1231,-72.695166.399,-77.636,166.399,-77.636166.635,-77.851,166.635,-77.8512008-11-24T00:00:00Z2008-11-24T00:00:00Z2009-07-02T04:00:00ZFive ice cores were collected from Terra Nova bay in the vicinity of Gondwana station. From each core the top, middle and bottom sections were sectioned and processed as described earlier. In addition, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K042_1957_1963_NZ_1Early geological, glaciology and biological investigations of the McMurdo Dry Valleys, the Koettlitz Glacier area and Darwin Glacier area by Victoria University of Wellington Antarctic Expeditions160.0,-78.0,164.0,-77.0163.0,-78.5,165.0,-77.5155.0,-80.5,160.0,-79.51957-01-01T00:00:00Z1963-01-01T00:00:00Z2009-07-02T04:00:00ZThe Victoria University of Wellington Antarctic Expedition (VUWAE) was mounted to complete the detailed investigations of the extensive ice free area of Victoria Land between the Taylor and Mackay ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K042_1962_1963_NZ_1Investigation of the physics (heat balance) and chemistry of Lake Bonney, Taylor Valley, 1962-1963162.4167,-77.7167,162.4167,-77.71671962-01-01T00:00:00Z1963-01-01T00:00:00Z2009-07-02T04:00:00ZThe heat balance and chemistry of Lake Bonney was investigated in the 1962-63 field season. Temperature profiles were measured through 11 holes drilled in the surface ice of Lake Bonney. Of these, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K042_1961_1962_NZ_1Investigation of the physics (heat balance) and chemistry of Lake Vanda, Wright Valley, 1961-1962161.65,-77.5833,161.65,-77.58331961-01-01T00:00:00Z1962-01-01T00:00:00Z2009-07-02T04:00:00ZThe first study of the physics and chemistry of Lake Vanda and the geology of the surrounding area were investigated in the 1961-1962 field season. Twelve holes were drilled at 1000ft intervals along ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K042_1963_1964_NZ_1Measurements of water temperature, spectral irradiance (amount of sunlight), density and salt concentration from lakes in the Taylor and Wright Valley161.65,-77.5833,161.65,-77.5833162.4167,-77.7167,162.4167,-77.7167163.18333,-77.61667,163.18333,-77.61667162.76666,-77.63333,162.76666,-77.63333161.51666,-77.55,161.51666,-77.55161.18333,-77.566666,161.18333,-77.5666661963-01-01T00:00:00Z1964-01-01T00:00:00Z2009-07-02T04:00:00ZThe physics and chemistry of the many lakes and ponds in the McMurdo Dry Valleys was investigated in the 1963-64 field season. Previous work on Lakes Vanda and Bonney in the Wright and Taylor Valleys ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K042_1964_1965_NZ_4Investigations of the algal ecology of Lake Vanda, Wright Valley and Lake Miers, Miers Valley161.65,-77.5833,161.65,-77.5833163.85,-78.1,163.85,-78.11964-11-15T00:00:00Z1965-01-16T00:00:00Z2009-07-01T04:00:00ZThe algal ecology of two Antarctic lakes, Lake Vanda, Wright Valley and Lake Miers, Miers Valley, were studied, and extensive collections were made of littoral and terrestrial algae, lichens and mosses. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K162_1985_1986_NZ_1Glacial geological investigations at the Northern penguin colony at Cape Bird166.6833,-77.1667,166.6833,-77.16671985-01-18T00:00:00Z1985-01-30T00:00:00Z2009-06-30T04:00:00ZGlaciological work was carried out at Cape Bird to determine the glaciers margin structure. Initially, the hydrology of the region was investigated to determine the feasibility of measuring stream ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K161_1969_1991_NZ_1Hydrology and Glaciology of the Dry Valleys of Antarctica - glacier mass balance, ablation and movement and melt record determined by monitoring of stream flow and lake level of glacier fed streams and lakes160.0,-78.25,164.0,-77.251969-11-01T00:00:00Z1991-01-31T00:00:00Z2009-06-30T04:00:00ZA hydrological/glaciological study was conducted in the Dry Valleys of Antarctica from the 1969/70 summer until the 1990/91 season. The purpose of the hydrological/glaciological programme was to study ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K162_1985_1986_NZ_2Ice thickness measurements of the Erebus Ice Tongue by radio echo sounder166.6667,-77.7,166.6667,-77.71985-01-18T00:00:00Z1985-01-30T00:00:00Z2009-06-30T04:00:00ZThe Erebus Ice Tongue breaks off near its mid point in single regular calving events at about 30 year intervals. A number of studies have been made on the growth rate, mass balance, ice physics and ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K162_1985_1986_NZ_3Ice thickness measurements of the Wright Lower Glacier using radio echo sounders163.0,-77.4167,163.0,-77.41671985-01-18T00:00:00Z1985-01-30T00:00:00Z2009-06-30T04:00:00ZThe Wright Lower Glacier develops a complex of lake and glacier ice where the glacier enters Lake Brownworth. The form of the subglacial ice water surface was investigated. Ice thicknesses were determined ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K162_1984_1985_NZ_1Investigations of the glaciology and hydrology in the Terra Nova Bay regions162.0,-75.0,165.0,-74.01984-12-09T00:00:00Z1985-01-15T00:00:00Z2009-06-30T04:00:00ZThe occurrence or non-occurrence of both glacial moraines and past sea levels in the Terra Nova Bay area was investigated with a view to establishing a glacial chronology to supplement the Dry Valleys ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K161_1969_1991_NZ_3Lake water level monitoring of glacier fed lakes in the Dry Valleys160.0,-78.25,164.0,-77.251969-11-01T00:00:00Z1991-01-31T00:00:00Z2009-06-30T04:00:00ZMonitoring of the lake level and lake ice ablation rates of lakes in the Dry Valleys was monitored from the 1969/70 summer until the 1990/91 season. The data was used to contribute to the understanding ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K161_1969_1991_NZ_4Mass balance measurements and glacier monitoring of glaciers in the Dry Valleys160.0,-78.25,164.0,-77.251969-11-01T00:00:00Z1991-01-31T00:00:00Z2009-06-30T04:00:00ZGlaciers of the Dry Valleys occur where snow accumulation gains exceed sublimation and other losses. Monitoring of the mass balance of glaciers in the Dry Valleys was conducted from the 1969/70 summer ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K161_1969_1991_NZ_5Spatial variation measurements of the hydrology and glaciology of the Dry Valleys160.0,-78.25,164.0,-77.251988-11-01T00:00:00Z1991-01-31T00:00:00Z2009-06-30T04:00:00ZThe long term hydrology/glaciology study carried out in the McMurdo Dry Valleys was conducted to gain information on the hydrological behaviour of the Dry Valleys rivers and lakes, particularly for ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K161_1969_1991_NZ_2Streamflow monitoring of the Onyx River in the Wright Valley and various other glacier melt streams in the Dry Valleys160.0,-78.25,164.0,-77.251969-11-01T00:00:00Z1991-01-31T00:00:00Z2009-06-30T04:00:00ZMonitoring of the stream flow of glacial streams in the Dry Valleys was monitored from the 1969/1970 summer until the 1990/1991 season. The data was used to contribute to the understanding of the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K164_1984_1985_NZ_1Sediment transport load in the Onyx River, Wright Valley161.75,-77.5333,161.75,-77.53331984-12-27T00:00:00Z1985-01-17T00:00:00Z2009-06-19T04:00:00ZThe sediment transport load in the Onyx River was investigated. The bedload transport rates were used in association with the 15 year flow record, to estimate sandur sedimentation rates. 38 cross ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K081_2000_2001_NZ_5Determining the rates of nutrient uptake to create an approximate nutrient budget of microbial mats from Bratina Island ponds, McMurdo Ice Shelf165.3333,-78.0,165.3333,-78.02001-01-16T00:00:00Z2001-01-23T00:00:00Z2009-05-08T04:00:00ZMat cores from ponds on the McMurdo Ice Shelf were incubated in pond water which had been spiked by 50 ?g l-1 of nitrate or phosphate. Three ponds were used for water samples (Skua, Duet and P70) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K081_2001_2002_NZ_1The effect of temperature and sulphate availability on the terminal electron flow (to sulphide or methane) in anaerobic Antarctic sediments165.3333,-78.0,165.3333,-78.02002-01-16T00:00:00Z2002-01-26T00:00:00Z2009-05-04T04:00:00ZSediment was collected from a range of ponds from the McMurdo Ice Shelf and returned to New Zealand for laboratory studies. Samples were incubated in long term incubators to determine the relative ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1971_1972_NZ_2A survey of suitable sites in the Wright Valley for boreholes and a study of Lake Vanda sediments161.5,-77.5333,161.5,-77.53331971-11-13T00:00:00Z1972-01-07T00:00:00Z2009-04-20T04:00:00ZTwo weeks were spent in the Wright Valley to survey suitable sites for boreholes to be put down as part of the International Drilling Programme. It was proposed to core the entire thickness of bottom ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1973_1974_NZ_1Bathymetric surveys, the geomorphology, glacial chronology, halite investigations, thermokarst formations, overland flow and stream bifurcations of Lake Bonney area 160.5,-77.8333,163.5,-77.251973-11-01T00:00:00Z1974-02-01T00:00:00Z2009-04-20T04:00:00Z35 holes were drilled through the ice in the smaller western lobe of Lake Bonney and the bathymetry of the lake was determined. A further 52 holes were used for the eastern lobe bathymetry. Sediment ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1982_1983_NZ_2Estimates of the rate of photosynthesis, nitrate reduction and sulphate reduction of bacteria in Antarctic ponds and lakes162.0,-78.0,169.0,-77.01982-12-04T00:00:00Z1983-01-07T00:00:00Z2009-04-20T04:00:00ZSamples of algae and bacteria were from the east and west lobe of Lake Bonney (sediment), Lake Miers sediment, Lake Fryxell (9.75m and 14m sediment) and an oligotrophic and eutrophic pond at Cape ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1974_1975_NZ_1Examination of the chemistry, physics and sedimentology of Lake Wilson, Waikato Valley, Brown Hills Region160.0,-80.5,160.0,-80.51974-11-01T00:00:00Z1974-12-17T00:00:00Z2009-04-20T04:00:00ZLake Wilson was examined to see if it contained permanent water. The thickness of the ice was described. 36 holes were drilled and the bathymetry was mapped. Surface sediment samples were collected ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1978_1979_NZ_3Ice core and soft sediment samples from Lake Fryxell, Lake Vanda, Don Juan Pond and surrounding shallow lakes in the Wright Valley160.0,-77.74,164.0,-77.251978-01-11T00:00:00Z1978-01-13T00:00:00Z1978-12-08T00:00:00Z1979-01-18T00:00:00Z2009-04-20T04:00:00ZA bathymetric map of Lake Fryxell was completed by drilling 28 holes through the floating ice and mapping the lake bottom. 13 cores were collected. The lake benthic sediment was cored for investigation. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1972_1973_NZ_3Observations on the development of shore lines on Lake Vanda161.6666,-77.5166,161.6666,-77.51661972-12-02T00:00:00Z1973-01-19T00:00:00Z2009-04-20T04:00:00ZA number of observations on the development of the shore line around Lake Vanda was recorded. Two previous seasons found the lake level to have risen considerably but the 72/73 season the lake level ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1969_1970_NZ_2Temperature and salinity profiles of the lakes in the Ross Sea Region166.2167,-77.5667,166.2167,-77.5667162.4167,-77.7167,162.4167,-77.71671969-11-15T00:00:00Z1970-01-12T00:00:00Z2009-04-20T04:00:00ZTemperature and salinity profiles and general characteristics of Deep Lake and Lake Bonney were investigated.http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1972_1973_NZ_4The bathymetry and sedimentology of Lake Joyce161.6167,-77.7167,161.6167,-77.71671972-12-02T00:00:00Z1973-01-19T00:00:00Z2009-04-20T04:00:00Z18 holes were drilled through the floating ice of Lake Joyce. The position of the holes were surveyed, the ice thickness and water depths were measured and the coring of the bottom sediments was ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1981_1982_NZ_1Water chemistry and biology of the Canada Glacier glacial meltwater stream162.9833,-77.6167,162.9833,-77.61671981-11-09T00:00:00Z1982-01-08T00:00:00Z2009-04-20T04:00:00ZLake water chemistry is relatively well understood, whereas in comparison stream waters have been little studied. The chemistry of glacial meltwater from the Canada Glacier was characterised and the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K009_1969_1970_NZ_1Geochemistry investigations of landforms in the Ross Sea Region to determine past glacial history and landform processes160.0,-78.0,170.0,-77.251969-11-15T00:00:00Z1970-01-12T00:00:00Z2009-04-18T04:00:00ZThe geochemistry of Ross Island (Cape Barne and Cape Crozier), the Taylor and Wright Valleys, Lake Vida in Victoria Valley and Marble Point was studied (weathering and land formation) to determine ...