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The Flood Event Viewer's Peak Summary Data report creates a FilteredPeaks.csv or FilteredPeaks.json file for the current selected event.  The data dictionary for this event is shown below, and users can downloaded the dictionary here as a CSV file.

FieldDefinition
latitude_ddHorizontal location of Site of common water surface in decimal degrees (Peaks do not have assigned lat/lon)
longitude_ddHorizontal location of Site of common water surface in decimal degrees (Peaks do not have assigned lat/lon)
vdatumVertical datum associated with peak elevation.  See vdatum_id for current possibilities.
member_namePeak record creator
site_idUnique integer ID assigned to each Site in the system
site_noFull site number (including State/County abbreviation and site ID)
descriptionDescription of Site
networksUSGS groupings of sites (may overlap).  Possibilities include:
Coastal Change Hazards (CCH)
Gulf of Mexico
North Atlantic
Not Defined
SCoRE
South Atlantic
SWaTH
stateState abbreviation
countyCounty name
waterbodyBody of water most closely associated with the Site
horizontal_datumHorizontal datum associated with the Site
prioritySite deployment priority (used primarily for sensor deployments).  Possibilities include:
Network critical
Secondary development
Desired but not required
zoneUSGS water science center zone designation (largely unused)
horizontal_collection_methodMethod used to find horizontal location of Site.  Possible values:
Handheld GPS
Static-GNSS
Phone/Car GPS
Map (digital or paper)
Other (Note in Description box)
RT-GNSS
perm_housing_installedIndicates established equipment location
peak_summary_idUnique integer id assigned to each Peak.  Peaks can be assigned to a selected location for a selected event.  One or more HWM or sensor reading can be associated with a peak as evidence of that peak.
member_idSystem id of Peak record creator
peak_dateDate and time assigned to peak (may be estimated--see below)
is_peak_estimatedWhether the date (integer portion) of peak_date was an estimation (1) or data was available to assign a date/time (0)
is_peak_time_estimatedWhether the time (decimal portion) of peak_date was an estimation (1) or data was available to assign a date/time (0)
peak_stageElevation of Peak in feet above vdatum.  Peaks can be assigned to a selected location for a selected event.  One or more HWM or sensor reading can be associated with a peak as evidence of that peak.
is_peak_stage_estimatedWhether peak_stage was an estimation (1) or data was available to assign an elevation (0)
peak_dischargeDischarge in cubic feet per second at time of Peak.
is_peak_discharge_estimatedWhether peak_discharge was an estimation (1) or data was available to assign a streamflow value (0)
vdatum_idCode for vertical datum of Peak.  Appears to be currently unused, but values would include:
1 local control point
2 NAVD88
3 Above Ground Level
4 NGVD29
6 PRVD02
7 VIVD09
8 International Great Lakes Datum of 1985
height_above_gndDistance from HWM down to ground surface in feet.  Note: use with extreme care; these values are often estimated or rough measurements at the HWM or Sensor loation that could include tree roots, sloping surfaces, etc. immediately beneath the HWM or sensor and may not represent height above ground at the Site lat/lon if the Site lat/lon is slightly different than the contributing HWM(s) or sensor.
is_hag_estimatedWhether height_above_gnd was an estimation (1) or data was available to assign a value (0)
time_zoneTime zone of peak_date
aepAnnual Exceedance Probability (decimal fraction) of peak_discharge
aep_lowciLower confidence limit of aep (see aep_range for percent confidence)
aep_upperciUpper confidence limit of aep (see aep_range for percent confidence)
aep_rangePercent confidence of AEP confidence limits
calc_notesNotes describing source(s) and/or computation of Peak elevation
last_updatedcurrently unused
last_updated_bycurrently unused
membercurrently unused
data_fileInternal STN identifier - no useful info for FEV user
hwmsInternal STN identifier - no useful info for FEV user
vertical_datumscurrently unused
Linkscurrently unused

Contact tkoenig@usgs.gov for questions or corrections to this page.

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