Filters: Tags: Northern Hemisphere (X)39 results (150ms)
This dataset represents the predicted current distribution of permafrost based on results from a frost-index-based model, global gridded air temperature, and precipitation. Three classes are used to describe permafrost type: (1) sporadic, (6) continuous, and (7) discontinuous. Details about how this dataset was created can be found in Anisimov and Nelson (1996, 1997).
Influence of temperature and nutrients on species richness of deep water corals from the western coast of the Americas
2005 Land Cover of North America at 250 meters - National Geospatial Data Asset (NGDA) Land Use Land Cover
This data set replaces the 2010 edition (Edition 1.0) of the 2005 Land Cover of North America. Following the release of the first 2005 land cover data, several errors were identified in the data, including both errors in labeling and misinterpretation of thematic classes. To correct the labeling errors, each country focused on its national territory and corrected the errors which it considered most critical or misleading. For the continental data sets (including surrounding water fringe) 17440830 pixels (4.33% of the area) changed in the update. The following national counts exclude the water fringe: Canada, 10223412 pixels changed (6.44%); Mexico, 141142 pixels changed (0.45%), and U.S., 6878656 pixels changed...
Origin of the antitropical distribution pattern in marine mussels (Mytilus spp.): routes and timing of transequatorial migration
Inter-annual variability of summertime CO concentrations in the Northern Hemisphere explained by boreal forest fires in North America and Russia
2005-2010 Land Cover Change of North America at 250 meters - National Geospatial Data Asset (NGDA) Land Use Land Cover
This data set shows areas where the land cover classification changed between 2005and 2010. The 2005-2010 Land Cover Change of North America at 250 meters wasproduced as part of the North American Land Change Monitoring System (NALCMS), atrilateral effort between the Canada Centre for Remote Sensing, the United StatesGeological Survey, and three Mexican organizations including the National Instituteof Statistics and Geography (Instituto Nacional de Estadistica y Geografia),National Commission for the Knowledge and Use of the Biodiversity (ComisiónNacional Para el Conocimiento y Uso de la Biodiversidad), and the National ForestryCommission of Mexico (Comisión Nacional Forestal). The collaboration isfacilitated by...
Ozone climatologies at 9-12 km altitude as seen by the MOZAIC airborne program between September 1994 and August 1996
Tits, warblers, and finches: Foliage-gleaning birds of nearctic and palearctic boreal fores Greenberg, R; Pravosudov, V; Sterling, J; Kozlenko, A; Kontorshchikov, V
This shapefile represents the watersheds present within the Crown of the Continent Ecosystem (CCE) boundary.(Note: a different CCE boundary layer was used at the time of creation, so the area amounts within the CCE may not be accurate)This dataset was developed by the Crown Managers Partnership, as part of a transboundary collaborative management initiative for the Crown of the Continent Ecosystem, based on commonly identified management priorities that are relevant at the landscape scale. The CMP is collaborative group of land managers, scientists, and stakeholder in the CCE. For more information on the CMP and its collaborators, programs, and projects please visit: http://crownmanagers.org/
Late glacial warming prior to Heinrich event 1: The influence of ice rafting and large ice sheets on the timing of initial warming