// OVERVIEW - Establish the data to be displayed
var data = new Array(
		new Array("Introduction", "The impact of projected climate change on spruce forests in British Columbia was been assessed using bioclimatic envelope models. Present and future climatic suitability has been modelled for Engelmann spruce (<I>Picea engelmannii</I>), hybrid spruce (<I>Picea engelmannii</I> x <I>glauca</I>), and white spruce (<I>Picea glauca</I>). <br><br> Bioclimatic envelope models use historical climate data to define the climatic envelopes that control a species' spatial distribution. In this study, a correlative bioclimatic envelope modelling technique based on principal component analysis was employed to determine climatic suitability at a resolution of four kilmetres throughout British Columbia. The model was developed using elevation-adjusted interpolated records of the 1961-1990 climate normals. Future suitability was modelled using climate data from ten different projections derived from five GCMs under three emissions scenarios. Predicted suitability maps were produced for the 30-year time-slices centred on 2020, 2050, and 2080. <br><br> As expected, all projections indicate a rapid shift in climatic suitability for spruce to higher elevations and latitudes than their current range. However, significant differences exist between the projections with regard to the pace, extent and fine-scale details of these changes.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program",""),

		     new Array("Historical suitability", "Climatic suitability for spruce during 1961-1990 and comparison of modelled suitability with actual historical distribution of spruce forests. For ease of comparison, a 90% threshold between suitable and unsuitable climatic conditions was applied to the modelled historical suitability.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Spruce distribution data: from the BC Ministry of Forests and Range Vegetation Resources Inventory. Climate data: ClimateBC (4 km) 1961-1990 normals and the following 2020s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_1961.png","SP_1961_VRI.png"),

		     new Array("Projected 2020s suitability", "Mean climatic suitability for spruce during the 2020s and change in suitability relative to the 20th century. Future suitability values calculated for ten different climate projections were averaged to obtain the mean 2020s suitability. Loss/gain of suitability calculated using a threshold equal to 90% climatic suitability.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Data: ClimateBC (4 km) 1961-1990 normals and the following 2020s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_2020_MEAN_of_10.png","SP_2020_CHANGE_IN_SUITABILITY_10.png"),

		     new Array("Projected 2050s suitability", "Mean climatic suitability for spruce during the 2050s. Future suitability values calculated for ten different climate projections were averaged to obtain the mean 2050s suitability. Loss/gain of suitability calculated using a threshold equal to 90% climatic suitability.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Data: ClimateBC (4 km) 1961-1990 normals and the following 2050s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_2050_MEAN_of_10.png","SP_2050_CHANGE_IN_SUITABILITY_10.png"),

		     new Array("Projected 2080s suitability", "Mean climatic suitability for spruce during the 2080s. Future suitability values calculated for ten different climate projections were averaged to obtain the mean 2080s suitability. Loss/gain of suitability calculated using a threshold equal to 90% climatic suitability.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Data: ClimateBC (4 km) 1961-1990 normals and the following 2080s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_2080_MEAN_of_10.png","SP_2080_CHANGE_IN_SUITABILITY_10.png"),

		     new Array("2020s uncertainty", "The uncertainty inherent in projections from global climate models was assessed by comparing the model results calculated using ten different projections, and by determining the number of projections that indicate climatically suitable conditions for spruce at each grid cell across the province. Agreement between projections is relatively during the 2020s, with all ten climate projections agreeing about whether or not climatic conditions are suitable for spruce in 88% of the province.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Data: ClimateBC (4 km) 1961-1990 normals and the following 2020s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_2020_six_projections.PNG","SP_2020_NUMBER_OF_PROJECTIONS_10.png"),

		     new Array("2050s uncertainty", "The uncertainty inherent in projections from global climate models was assessed by comparing the model results calculated using ten different projections, and by determining the number of projections that indicate climatically suitable conditions for spruce at each grid cell across the province. Agreement between projections shows a moderate decrease between the 2020s and the 2050s, with all ten climate projections agreeing about whether or not climatic conditions are suitable for spruce in 81% of the province during the 2050s.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Data: ClimateBC (4 km) 1961-1990 normals and the following 2020s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_2050_six_projections.PNG","SP_2050_NUMBER_OF_PROJECTIONS_10.png"),

		     new Array("2080s uncertainty", "The uncertainty inherent in projections from global climate models was assessed by comparing the model results calculated using ten different projections, and by determining the number of projections that indicate climatically suitable conditions for spruce at each grid cell across the province. Agreement between projections shows a considerable decrease by the 2080s, with all ten climate projections agreeing about whether or not climatic conditions are suitable for spruce in only 54% of the province.","Analysis: PCIC staff<br>Support: BC Ministry of Forests and Range: Forest Investment Account - Forest Science Program<br>Data: ClimateBC (4 km) 1961-1990 normals and the following 2020s Climate Projections: CCCMA_CGCM3 A2 - run 5; CCCMA_CGCM3 A2 - run 4; UKMO_HADGEM1 A1B - run 1; MPI_ECHAM B1 - run 3; MRI_CGCM2.3.2A B1 - run 5; UKMO_HADCM3 B1 - run 1","SP_2080_six_projections.PNG","SP_2080_NUMBER_OF_PROJECTIONS_10.png")
		
		     );