uid=PIE,o=EDI,dc=edirepository,dc=org all public read GIS_ip30_info_dem Digital Elevation Model - Ipswich Watershed - Idrisi Raster File. Takashi Tada Florida Atlantic University Clark University Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ 1970 English
This datalayer is part of a group of layers used for research in the Ipswich River Watershed. This is Digital Elevation Model data for the study area, in a 30-meter grid. The source elevation tile data was provided on the MassGIS website www.state.ma.us/mgis/massgis.htm in ESRI-format shapefile format and imported into IDRISI software using the ShapeIdr command. The resulting vector elevation files were converted to raster format using successive Lineras macro commands. This has the effect of mosaicing the tiles as well. The raster image was filtered once using a low-pass (mean) filter, then masked to the Ipswich study area parameters (extent). This datalayer was produced as part of a research project concerning the Ipswich River Watershed.
geographic information systems Ipswich River watershed elevation digital elevation model geographic information systems PIE LTER Plum Island Ecosystems LTER Controlled Vocabulary
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https://pie-lter.ecosystems.mbl.edu/content/digital-elevation-model-ipswich-watershed-idrisi-raster-file This is the geographical bounding box for the Ipswich River Watershed, Plum Island Ecosystem, Massachusetts -71.334312438965 -70.713417053223 42.760253906250 42.446598052979 2002-01-01 Progress: Complete. Maintenance and Update Frequency: None. Edition: Not Applicable Metadata converted from MSWord documentation on 1.15.2013 by M. Hayn using "PIE_WordMetaConvert" package developed for conversion of data to EML 2.1.0 in R environment. 8/1/2019 corrected lat/long inversion for Ipswich Watershed boundary box   PIE LTER Information Manager pie_im@mbl.edu Robert Pontius Clark University (508) 793-7761 (508) 793-8881 rpontius@clarku.edu http://www2.clarku.edu/~rpontius/ http://orcid.org/0000-0001-7287-5875 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems
3-meter contours created from Digital Terrain Model (DTM) data points collected during the production of 1:5,000 Black and White Digital Orthophoto images Process_Date: before August 2001 The source elevation tile data was provided on the MassGIS website www.state.ma.us/mgis/massgis.htm in ESRI-format shapefile format and imported into IDRISI software using the ShapeIdr command.  The resulting vector elevation files were converted to raster format using successive Lineras macro commands.  This has the effect of mosaicing the tiles as well.  The raster image was filtered once using a low-pass (mean) filter, then masked to the Ipswich study area parameters (extent). Information relevant to the GIS data encoding DEMHorizontal Coordinate System Name:NAD 1983 StatePlane Massachusetts Mainland FIPS 2001 Datum: D North American 1983 Reference Ellipsoid: Name: GRS 1980 Semi Axis: 6378137.0 Meridian: Greenwich Projection Name : Lambert Conformal Conic Number of bands : 1 Raster Origin : Lower Left Rows : 1152 Columns : 1692 Cell Geometry :pixel
Plum Island Ecosystems Long Term Ecological Research (PIE LTER I, 1998-2004) Charles Hopkinson University of Georgia (706) 542-1855 chopkins@uga.edu http://orcid.org/0000-0002-7331-8322 principalInvestigator Linda Deegan Woodwell Climate Research Center 508-444-1557 ldeegan@woodwellclimate.org http://orcid.org/0000-0002-1017-9599 principalInvestigator Anne Giblin Marine Biological Laboratory (508) 289-7488 (508) 457-1548 agiblin@mbl.edu http://orcid.org/0000-0003-3851-2178 principalInvestigator Jim Morris University of South Carolina 803-777-3948 morris@inlet.geol.sc.edu http://research.cas.sc.edu/morris/ https://orcid.org/0000-0002-0511-642X principalInvestigator Joe Vallino Marine Biological Laboratory (508) 289-7648 (508) 457-1548 jvallino@mbl.edu http://orcid.org/0000-0002-4184-4512 principalInvestigator Robert Buchsbaum Mass Audubon (978) 927-1122 (978) 922-8487 rbuchsbaum@massaudubon.org principalInvestigator Human activities in rivers and watersheds have altered enormously the timing, magnitude and nature of inputs of materials such as water, sediments, nutrients and organic matter to estuaries. An important but neglected linkage between land and coastal waters is the input of dissolved and particulate organic carbon and organic nitrogen. This long-term ecological research (LTER) in land/ocean margin ecosystems will focus on the following question and hypotheses: How will trophic structure and primary and secondary productivity in estuaries be affected by changes in organic matter, nutrient and water fluxes cause by changing land cover, climate and sea level? Hypothesis 1. The interaction of inorganic nutrients with the quantity and quality of organic carbon and organic nitrogen plays an important role in determining the trophic structure, production and efficiency of estuarine food webs. Hypothesis 2. The variability in land, ocean and atmospheric forcing is a key component determining the fate of allochthonous and autochthonous materials and the location and magnitude of primary and secondary production. NSF OCE LTER-Plum Island Ecosystems: Plum Island Sound Comparative Ecosystem Study (PISCES): Effects of changing land cover, climate, and sea level on estuarine trophic dynamics 9726921 GIS_ip30_info_dem DEM GIS_ip30_info_dem.zip 4016828 eef087bd37d9d598fa4e44067f6cd036 56ef76a9321930737af6307239b231dcb974f2e9 application/zip https://pie-lter.ecosystems.mbl.edu/sites/default/files/GIS_ip30_info_dem.zip file