Update variableAttributes.yaml

metadata/chumash/variableAttributes.yaml

@@ -1,27 +1,26 @@
 ---
 effort:
   standard_name: effort
-  long_name: duration of input data available for each 1-minute bin
+  long_name: Duration of input data available for each 1-minute bin
   coverage_content_type: qualityInformation
 frequency:
   standard_name: sound_frequency
-  long_name: center frequency of hybrid millidecade spectral bands
+  long_name: Center frequency of hybrid millidecade spectral bands
   units: Hz
   coverage_content_type: coordinate
 psd:
   standard_name: sound_intensity_in_water
-  long_name: single-sided mean-square sound pressure spectral density
-  units: dB re 1 micropascal^2/Hz
+  long_name: Single-sided mean-square sound pressure spectral density (dB re 1 µPa^2/Hz)
+  units: dB
   coverage_content_type: physicalMeasurement
   comment: >-
-    Computation of single-sided mean-square sound pressure spectral density
-    followed ISO 18405 3.1.3.13.
+    Computation followed ISO 18405 3.1.3.13.
 sensitivity:
-  standard_name: calibration
-  long_name: hydrophone_sensitivity
-  units: dB re 1 volt / micropascal
+  long_name: Hydrophone sensitivity (dB re 1 volt / µPa)
+  units: dB
   coverage_content_type: physicalMeasurement
 time:
   standard_name: time
-  long_name: ISO 8601 UTC time beginning each 1-minute temporal bin
+  long_name: UTC time beginning each 1-minute temporal bin
+  units: seconds since 1970-01-01T00:00:00Z
   coverage_content_type: coordinate