Topography of the Narragansett Bay region.
Changes from 2001 to 2011 in forest and urban lands
Heat map of population change from 1990-2010 in watersheds of Narragansett Bay
The extent of freshwaters and estuarine waters in Narragansett Bay and its Watershed and the waters that have been assessed by MassDEP and RIDEM
Changes in household density across the Narragansett Bay Watershed from 1940-2010
Shellfishing growing areas in Narragansett Bay by category in 2015
Dasymetric model representing 2010 population density and distribution in the Narragansett Bay Watershed
The extent and proportion of water quality conditions for aquatic life use in the Narragansett Bay Watershed's River Basins
Wastewater Treatment Facilities: Percent contribution to nitrogen loading
Methylmercury concentrations in sediments of Narragansett Bay
Extent of sewer service areas served by wastewater treatment facilities in the Naragansett Bay Watershed
Ecologically significant lands in Narragansett Bay watershed based on CAPS with IEI greater than 0.49
Topography and hydrography of the Narragansett Bay watershed
Benthic (seafloor) habitat change between 1988-2008 in Narragansett Bay
The extent and proportion of state-assessed waters that were either assessed or not assessed for recreational use in Narragansett Bay and its Watershed
Licensed marine beaches in Narragansett Bay
The extent and proportion of water quality conditions for recreational use that were assessed by the states in the Narragansett Bay watershed's river basins
Density of buildings that are estimated to be served by onsite systems
Land use and water quality conditions for aquatic life
Narragansett Bay Bathymetry (water depth)
Open space in the Narragansett Bay Watershed based on land use categories
The extent and proportion of state-assessed waters that were either assessed or not assessed for aquatic life use in Narragansett Bay and Its Watershed
Monitoring sites in Narragansett Bay
Figure 4 - Yearly average flow and total flow in millions of gallons per day (MGD) for the Blackstone River from the USGS gage at Woonsocket
Figure 9 - Mean summer (July-September) chlorophyll concentrations (ug/l) and maximum surface chlorophyll concentration from 2010 to 2015
Figure 5 - Summer (July, August, September) light extinction coefficients (k) for 2007 to 2014 based on PAR data for the Providence River Estuary and Secchi depth data for the West and East Passages
Figure 1 - Annual average water temperature at Woods Hole, MA 1880-2015
Figure 3 - Light extinction coefficients (k), derived from Secchi depth, by season in 2014
Figure 3 - Comparison of wastewater treatment facility phosphorus loading budgets
Figure 19 - Winter-spring chlorophyll plotted versus water temperature during the month of the bloom from 1977 to 2017 at the GSO Dock
Figure 6 - Summer light extinction coefficients (k) in wet years (2006 and 2013) and dry years (2007 and 2014) based on PAR data and Secchi depth data (Fox Island only)
Figure 5 - Hypoxia Index averages over sites within each site group within the Narragansett Bay Fixed Site Monitoring Network (NBFSMN), relative to the 2.9 mg/l threshold
Figure 3 - Annual Palmer Drought Severity Index (PDSI) for Rhode Island
Figure 7 - Annual mean river/stream water temperatures from 2007-2014
Figure 4 - Historical changes in percentage of Narragansett Bay Watershed classified as forest or urban
Figure 2 - Acreage change in shellfish growing areas by category in Narragansett Bay at five-year intervals
Figure 6 - Climate model projection of the winter annual snowfall in RI or MA to 2100
Figure 3c - Annual mean abundance for four warm-water fish species (summer flounder, butterfish, longfin inshore squid, and scup) caught in the (RIDEM) trawl survey
Figure 8 - Seasonal air temperature projections for RI from 1950-2100
Figure 3d - Mean annual bottom-water temperature from the RIDEM trawl survey
Figure 4 - Annual mean surface water temperatures in Narragansett Bay 1960-2010
Figure 11 - Minimum bottom water dissolved oxygen values for all Narragansett Bay Fixed Site Monitoring Network (NBFSMN) sites for dry years (2007, 2014, 2015) and for the wet years (2006, 2009, 2013)
Figure 5 - Climate model projection of the winter total precipitation in RI or MA to 2100
Figure 1 - Summer (June, July, August, September) average water temperature from 1959 to 2016
Figure 3 - Acreage change in shellfish growing areas by category in the Upper Estuary region at five-year intervals
Figure 6 - Summer (July-September) chlorophyll concentrations from grab (filtered water) samples from 2002 to 2015
Figure 4 - Summer averages light extinction coefficents (k), calculated from Secchi depth, at Fox Island
Figure 5 - Annual mean river/stream water temperatures in Scituate Reservoir
Figure 2 - Narragansett Bay pelagic-to-demersal (P:D) ratio for the fish community calculated from abundance-per-tow data for GSO and mean annual abundance data for RIDEM trawl surveys
Figure 6 - Annual mean river/stream water temperatures at Millville, MA
Figure 3 - Estimated total population from 1850 to 2000 in the Narragansett Bay Watershed
Figure 12 - Chlorophyll Bloom Index averages over multiple sites, relative to site-specific 80th percentile thresholds
Figure 4 - Annual Palmer Drought Severity Index (PDSI) for Massachusetts
Figure 4 - Hypoxia Index for individual sites within each site group within the Narragansett Bay Fixed Site Monitoring Network (NBFSMN), relative to the 2.9 mg/l threshold
Figure 1 - Total population and percentage of population in the Narragansett Bay Watershed served by sewers
Figure 11 - Chlorophyll Bloom Index for individual sites, relative to site-specific thresholds
Figure 4 - Mean annual numbers of individauls per tow (GSO trawl) and mean annual abundance (RIDEM trawl) for American lobster and winter flounder
Figure 2 - Comparison of wastewater treatment facility nitrogen loading budgets
Figure 3b - Mean spring-summer sea surface temperature
Figure 3a - Mean annual number of individuals per tow for four warm-water fish species (summer flounder, butterfish, longfin inshore squid, and scup) caught in the URI GSO fish trawl survey
Figure 10 - Mean summer (July-September) chlorophyll concentrations (ug/l) and maximum surface chlorophyll concentration from 2002 to 2014