Historical News

August 1, 2024

Water Column Clarity

​Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on August 1, 2024. Rainfall totaling 1.34 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 2.0 meters. The lowest clarity this week (1.6 meters) was measured at Phillipsdale Landing, while the greatest clarity (2.7 meters) was measured at Point Street Bridge. There was no evidence of a north-to-south gradient of increasing water clarity among the sites this week.​

August 21, 2024

Surface Mapping

​Surface chlorophyll data were collected on August 21, 2024 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River and Northern Providence River Channel, and as fair in all other areas. Overall, chlorophyll ranged 0.93 to 20.56 µg/L with an average of 4.42 µg/L. The chlorophyll concentrations from this date are presented in the map below using Inverse Distance Weighting (IDW) interpolation.

Dataflow 2024-08-21_snapshot.jpg

August 14, 2024

Surface Mapping

​Surface chlorophyll data were collected on August 14, 2024 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as poor in the Seekonk River, and as fair in all other areas. Overall, chlorophyll ranged 1.31 to 109.86 µg/L with an average of 19.45 µg/L. The chlorophyll concentrations from this date are presented in the map below using Inverse Distance Weighting (IDW) interpolation.


Dataflow 2024-08-14_snapshot.jpg

August 7, 2024

Surface Mapping

​Surface chlorophyll data were collected on August 7, 2024 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as fair in all areas surveyed. Overall, chlorophyll ranged 1.72 to 24.79 µg/L with an average of 7.32 µg/L. The chlorophyll concentrations from this date are presented in the map below using Inverse Distance Weighting (IDW) interpolation.


Dataflow 2024-08-07_Snapshot.jpg

August 1, 2024

Surface Mapping

​Surface chlorophyll data were collected on August 1, 2024 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as fair in all areas surveyed. Overall, chlorophyll ranged -0.45 to 63.34 µg/L with an average of 11.02 µg/L. The chlorophyll concentrations from this date are presented in the map below using Inverse Distance Weighting (IDW) interpolation.


Dataflow 2024-08-01_Snapshot.jpg

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