Nter (2015), Toolik LTER (http:dx.doi.org10.6073pasta2f655c865f42136611b2605ae778d275), and Zackenberg (http:www.information.g-e-m.dk)up by Walker et al. (1989) at Toolik Lake and nearby Imnavait Creek. This monitoring was a part on the International Tundra Experiment (ITEX). Guay et al. (2014) analyzed satellite data to determine annual GDC-0084 dynamics of normalized-difference vegetation index (NDVI), a measure of plant productivity, which is also very correlated with aboveground biomass in arctic systems (Boelman et al. 2003; Raynolds et al. 2012). The NDVI data were derived from the GIMMS-AVHRR times series, version three g (Pinzon and Tucker 2014), using a 0.07o (eight km) spatial resolution. We analyzed the GIMMS-3 g dataset across the years 1982014 for any 40-km (20 km radius) location surrounding the Toolik Field Station. Seasonal periods of NDVI trends via time had been constant using the seasonal periods utilised to assess trends in air temperature (see legend for Fig. three).Benefits Climate trends: Arctic, North Slope of Alaska, Toolik, and Zackenberg More than the complete Arctic, the typical SAT for the past century improved by roughly 0.09 per decade; sincethe mid 1960s that rate has enhanced to 0.four per decade (ACIA 2005). The North Slope of Alaska has warmed even faster than the rest with the Arctic through the past few decades; Shulski and Wendler (2007) report a rise 
of extra than 3 over the previous 60 years or 0.5 per decade. The coastal town of Barrow, some 310 km northwest in the Toolik web page, has warmed considerably (p\0.01) more than the last 60 years using a temperature improve of three.1 or 0.five per decade (Fig. two) (Alaska Climate Research Center 2015). In contrast for the Arctic and North Slope trends, a linear trend analysis of your Toolik datasets revealed no significant trend (p[0.05) in the 25-year record of SAT from 1989 to 2010 (Cherry et al. 2014) or in SAT from 1989 to 2014 (Fig. 2). This inability to detect a substantial trend (p[0.05) for these dates also occurred for the Barrow record for precisely the same short period (Fig. 2). The lack of significant warming is also apparent within a closer evaluation in the Toolik record for winter, spring, summer time, and fall (Fig. three). In contrast, the Zackenberg annual air temperatures and the summer time temperatures (Figs. two, 3) show a significant (p\0.01) warming. Schmidt et al. (2012) report that more than the 1997008 period, the measured typical summer season temperature increased substantially resulting in a rise of between 1.8 and two.7 per decade (p\0.01), whileThe Author(s) 2017. This short article is published with open access at Springerlink.com www.kva.seenSAmbio 2017, 46(Suppl. 1):S160Fig. 3 Seasonal suggests of Toolik LTER SAT 1988014 for winter (October 1 pril 30), spring (May 1 une 15), summer season (June 16 ugust 15), and fall (August 16 eptember 30). Summer information also contain 1996014 implies from Zackenberg (closed squares) from August 16 to September 30. Trend lines are linear regressions; only Zackenberg PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/21301389 summer trends are important (p \ 0.01). Data sources same as in Fig.precipitation information show no significant trends for annual averages or for summer time months. To extend the Zackenberg climate database, Hansen et al. (2008) used data from a nearby meteorological station (established in 1958) and from elsewhere in Greenland to make a dataset and calculate a long-term enhance in average annual temperature for the period 1901005 of 1.39 (p\0.01) and for 1991005 of 2.25 (p\0.01); they mention that these trends are equivalent to.