20230216
00231400
1.0
FALSE
CBSeg92_Attainment_Albers
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
Albers_Conical_Equal_Area
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20210928
15142200
20210928
18141700
150000000
5000
FGDC
Esri ArcGIS 12.7.0.26828
CBSeg92_Attainment_Albers
92 Chesapeake Bay TMDL segments with basic statistics alongside the current attainment deficit statistics
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>92 Chesapeake Bay TMDL segments with basic statistics alongside the current attainment deficit statistics</SPAN></P></DIV></DIV></DIV>
Monitoring
Modeling
TMDL
Attainment
Deficit
0
File Geodatabase Feature Class
dataset
0
Simple
FALSE
0
TRUE
FALSE
CBSeg92_Attainment_Albers
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
STATE
STATE
String
2
0
0
CBSEG_92
CBSEG_92
String
9
0
0
WQ_SEGS
WQ_SEGS
String
255
0
0
SEGMENT_NAME
SEGMENT_NAME
String
255
0
0
RIVER_BASIN
RIVER_BASIN
String
255
0
0
Basin Reports Systems V3 as of 2021-02-04
SALINITY
SALINITY
String
255
0
0
Salinity Regime (polyhaline, mesohaline, oligohaline, tidal fresh)
PH
Polyhaline
MH
Mesohaline
OH
Oligohaline
TF
Tidal Fresh
VOLUME
VOLUME
Double
8
0
0
The estimated bathymetric volumes of 92 Chesapeake Bay TMDL segments. The real volume of each segment changes over time. The data used to create the bathymetric volumes were an ArcGIS shapefile of the 92 Chesapeake Bay TMDL segments and a raster file of the bathymetry for the Bay and tributaries. The bathymetry data used were derived in 1999 by the Bay Program from more than 3 million NOAA/NOS GEODAS soundings (datum mean lower low) that were interpolated into 10m x 10m cells. The depth values in the bathymetry data were in increments of 0.1 meters. The depths are at mean low water. The bathymetry data is in UTM Zone 18N.
Using ESRI’s ArcGIS Model Builder, the volume of water for each segment for each of the Bay’s 503 0.1 meter bathymetric depths was calculated and summarized by segment. Note: No bathymetry data currently exist for two of the TMDL segments (WBRTF and ANATF_MD) and so no volumes were generated for those segments.
cubic meter
DEPTH
DEPTH
Double
8
0
0
The estimated bathymetric maximum depth of 92 Chesapeake Bay TMDL segments. The real depth changes over time.
The data used to create the bathymetric maximum depth were an ArcGIS shapefile of the 92 Chesapeake Bay TMDL segments and a raster file of the bathymetry for the Bay and tributaries. The bathymetry data used were derived in 1999 by the Bay Program from more than 3 million NOAA/NOS GEODAS soundings (datum mean lower low). The depth values in the bathymetry data were in increments of 0.1 meters. The depths are at mean low water.
Note: No bathymetry data currently exist for two of the TMDL segments (WBRTF and ANATF_MD) and so no depth were generated for those segments.
meter
MetersSq
MetersSq
Double
8
0
0
Surface area of 92 Chesapeake Bay TMDL segments provided by CBP Modeling team, close to the area calculated in UTM Zone 18N
square meter
Shoreline_m
Shoreline_m
Double
8
0
0
The estimated shoreline distance within each TMDL segment. The distance is calculated using SHORE_HR and 92 TMDL segments in Albers Conical Equal Area projection.
meter
MAX_DEPTH
MAX_DEPTH
Double
8
0
0
The estimated maximum depth of 92 Chesapeake Bay TMDL segments. The real depth changes over time. The data used to create the maximum depth were an ArcGIS shapefile of the 92 Chesapeake Bay TMDL segments and a raster file of the Topobathy for the Bay and tributaries. The Topobathy data is the Topobathymetric Model for Chesapeake Bay Region 1859 to 2015 developed by USGS. The depths are at North American Vertical Datum of 1988.
Note: No Topobathy data currently exist for TMDL segment ANATF_MD and so no depth was generated for this segment.
meter
MEAN_DEPTH
MEAN_DEPTH
Double
8
0
0
The estimated mean depth of 92 Chesapeake Bay TMDL segments. The real depth changes over time. The data used to create the mean depth were an ArcGIS shapefile of the 92 Chesapeake Bay TMDL segments and a raster file of the Topobathy for the Bay and tributaries. The Topobathy data is the Topobathymetric Model for Chesapeake Bay Region 1859 to 2015 developed by USGS. The depths are at North American Vertical Datum of 1988.
Note: No Topobathy data currently exist for TMDL segment ANATF_MD and so no depth was generated for this segment.
meter
MSN_1416
MSN_1416
Double
8
0
0
Attainment Deficit of Migratory, Spawning & Nursery 2014-2016
OW_1416
OW_1416
Double
8
0
0
Attainment Deficit of Open Water 2014-2016
DW_1416
DW_1416
Double
8
0
0
Attainment Deficit of Deep Water 2014-2016
DC_1416
DC_1416
Double
8
0
0
Attainment Deficit of Deep Channel 2014-2016
CHLAspr_1416
CHLAspr_1416
Double
8
0
0
Attainment Deficit of Spring ChlorophyII-A 2014-2016
CHLAsum_1416
CHLAsum_1416
Double
8
0
0
Attainment Deficit of Summer ChlorophyII-A 2014-2016
MSN_1517
MSN_1517
Double
8
0
0
Attainment Deficit of Migratory, Spawning & Nursery 2015-2017
OW_1517
OW_1517
Double
8
0
0
Attainment Deficit of Open Water 2015-2017
DW_1517
DW_1517
Double
8
0
0
Attainment Deficit of Deep Water 2015-2017
DC_1517
DC_1517
Double
8
0
0
Attainment Deficit of Deep Channel 2015-2017
CHLAspr_1517
CHLAspr_1517
Double
8
0
0
Attainment Deficit of Spring ChlorophyII-A 2015-2017
CHLAsum_1517
CHLAsum_1517
Double
8
0
0
Attainment Deficit of Summer ChlorophyII-A 2015-2017
MSN_1618
MSN_1618
Double
8
0
0
Attainment Deficit of Migratory, Spawning & Nursery 2016-2018
OW_1618
OW_1618
Double
8
0
0
Attainment Deficit of Open Water 2016-2018
DW_1618
DW_1618
Double
8
0
0
Attainment Deficit of Deep Water 2016-2018
DC_1618
DC_1618
Double
8
0
0
Attainment Deficit of Deep Channel 2016-2018
CHLAspr_1618
CHLAspr_1618
Double
8
0
0
Attainment Deficit of Spring ChlorophyII-A 2016-2018
CHLAsum_1618
CHLAsum_1618
Double
8
0
0
Attainment Deficit of Summer ChlorophyII-A 2016-2018
MSN_1719
MSN_1719
Double
8
0
0
Attainment Deficit of Migratory, Spawning & Nursery 2017-2019
OW_1719
OW_1719
Double
8
0
0
Attainment Deficit of Open Water 2017-2019
DW_1719
DW_1719
Double
8
0
0
Attainment Deficit of Deep Water 2017-2019
DC_1719
DC_1719
Double
8
0
0
Attainment Deficit of Deep Channel 2017-2019
CHLAspr_1719
CHLAspr_1719
Double
8
0
0
Attainment Deficit of Spring ChlorophyII-A 2017-2019
CHLAsum_1719
CHLAsum_1719
Double
8
0
0
Attainment Deficit of Summer ChlorophyII-A 2017-2019
Surface_area
Surface_area
Double
8
0
0
The shape area of 92 Chesapeake Bay TMDL segments calculated in Albers Conical Equal Area projection.
square meter
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
Center_Lat
Center_Lat
Latitude of segment centroid
Double
8
Center_Long
Center_Long
Longitude of segment centroid
Double
8
20210928