@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <https://gcmd.earthdata.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/13215210-664a-4636-96a8-cf8713e94c76>
  skos:prefLabel "NSF"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/aa4de5b8-b9ce-4202-a623-b51af4786928> .

<https://gcmd.earthdata.nasa.gov/kms/concept/aa4de5b8-b9ce-4202-a623-b51af4786928>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/13215210-664a-4636-96a8-cf8713e94c76> ;
  skos:prefLabel "LTER/NTL"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/providers> ;
  skos:definition """The long-term regional ecology of North Temperate lakes is the theme
      for the North Temperate Lakes (NTL) LTER. Our vision is to gain a
      predictive understanding of the ecology of lakes at longer and broader
      scales than has been traditional in limnology. Thus, we analyze and
      interpret data we collect over long periods on suites of lakes. The
      lakes are located from high to low in the landscapes of forested,
      agricultural, and urban catchments. We also collaborate with other
      long-term lake sites in the Laurentian Great Lakes region and
      elsewhere. The research is interdisciplinary involving physical,
      biological, and social scientists. Our major goals are:
      
      -to perceive long-term changes in these lake ecosystems;
      
      -to understand within lake interactions among physical, chemical, and
      biological processes that along with external drivers result in
      long-term dynamics;
      
      -to understand lake ecology at the lake district scale;
      
      -to integrate atmospheric, hydrologic, and biotic processes regionally;
      
      -to understand the reciprocal interactions between lakes and society.
      
      Our two field stations facilitate research in the lake districts ? the
      Limnology Laboratory on Lake Mendota in the Yahara Lake District of
      southern Wisconsin and the Trout Lake Station in the Northern
      Highlands of Wisconsin. Our data are public and available through this
      web site. Most of our data sets date to 1981 when this site became one
      of the first 6 LTER sites funded by the U.S. National Science
      Foundation, but several originate as early as the 1850s or as late as
      the mid 1990s. We invite collaboration with others.
      
      Website: "http://lter.limnology.wisc.edu/"
      
      [Summary provided by NTL LTER.]"""@en ;
  a skos:Concept .