Example
tsiskycover Archive Data Plot
Datastream : TSISKYCOVER
Total Sky Imager (TSI): fractional sky coverage
Active Dates
2000.07.02 - 2012.09.21
Measurement Categories
Cloud Properties
Originating Instrument
Total Sky Imager (TSI)
Measurements
Only measurements considered scientifically relevant are shown below by default.
Show all measurements
Measurement | Units | Variable |
---|---|---|
Altitude above mean sea level | m | alt |
Base time in Epoch | seconds since 1970-1-1 0:00:00 0:00 | base_time |
Pixel count: number in box, outside mirror area | pixels | count_box ( time ) |
Pixel count: number in camera and sun strip mask | pixels | count_mask ( time ) |
Pixel count: number total opaque | pixels | count_opaque ( time ) |
Pixel count: number total in processed circle | pixels | count_sky ( time ) |
Pixel count: number below horizon in image | pixels | count_sub_horz ( time ) |
Pixel count: number total between horizon and processed circle | pixels | count_sub_proczen ( time ) |
Pixel count: number total thin | pixels | count_thin ( time ) |
Pixel count: number total indeterminate | pixels | count_unknown ( time ) |
North latitude | degree_N | lat |
East longitude | degree_E | lon |
Percent opaque cloud | % | percent_opaque ( time ) |
Percent thin cloud | % | percent_thin ( time ) |
Quality check results on field: Pixel count: number in box, outside mirror area | unitless | qc_count_box ( time ) |
Quality check results on field: Pixel count: number in camera and sun strip mask | unitless | qc_count_mask ( time ) |
Quality check results on field: Pixel count: number total opaque | unitless | qc_count_opaque ( time ) |
Quality check results on field: Pixel count: number total in processed circle | unitless | qc_count_sky ( time ) |
Quality check results on field: Pixel count: number below horizon in image | unitless | qc_count_sub_horz ( time ) |
Quality check results on field: Pixel count: number total between horizon and processed circle | unitless | qc_count_sub_proczen ( time ) |
Quality check results on field: Pixel count: number total thin | unitless | qc_count_thin ( time ) |
Quality check results on field: Pixel count: number total indeterminate | unitless | qc_count_unknown ( time ) |
Quality check results on field: Percent opaque cloud | unitless | qc_percent_opaque ( time ) |
Quality check results on field: Percent thin cloud | unitless | qc_percent_thin ( time ) |
Quality check results on field: Pixel count: number total in horizon area | unitless | qc_region_horizon_count ( time ) |
Quality check results on field: Pixel count: number opaque in horizon area | unitless | qc_region_horizon_count_opaque ( time ) |
Quality check results on field: Pixel count: number thin in horizon area | unitless | qc_region_horizon_count_thin ( time ) |
Quality check results on field: Pixel count: number total in sun circle | unitless | qc_region_sun_count ( time ) |
Quality check results on field: Pixel count: number opaque in sun circle | unitless | qc_region_sun_count_opaque ( time ) |
Quality check results on field: Pixel count: number thin in sun circle | unitless | qc_region_sun_count_thin ( time ) |
Quality check results on field: Pixel count: number total in zenith circle | unitless | qc_region_zenith_count ( time ) |
Quality check results on field: Pixel count: number opaque in zenith circle | unitless | qc_region_zenith_count_opaque ( time ) |
Quality check results on field: Pixel count: number thin in zenith circle | unitless | qc_region_zenith_count_thin ( time ) |
Quality check results on field: Sun altitude above horizon | unitless | qc_solar_altitude ( time ) |
Quality check results on field: Solar azimuth angle | unitless | qc_solar_azimuth ( time ) |
Quality check results on field: Relative 'strength' of direct sun | unitless | qc_sun_strength ( time ) |
Quality check results on field: Sunshine meter | unitless | qc_sunny ( time ) |
Quality check results on field: Time offset from midnight | unitless | qc_time ( time ) |
Pixel count: number total in horizon area | pixels | region_horizon_count ( time ) |
Pixel count: number opaque in horizon area | pixels | region_horizon_count_opaque ( time ) |
Pixel count: number thin in horizon area | pixels | region_horizon_count_thin ( time ) |
Pixel count: number total in sun circle | pixels | region_sun_count ( time ) |
Pixel count: number opaque in sun circle | pixels | region_sun_count_opaque ( time ) |
Pixel count: number thin in sun circle | pixels | region_sun_count_thin ( time ) |
Pixel count: number total in zenith circle | pixels | region_zenith_count ( time ) |
Pixel count: number opaque in zenith circle | pixels | region_zenith_count_opaque ( time ) |
Pixel count: number thin in zenith circle | pixels | region_zenith_count_thin ( time ) |
Sun altitude above horizon | degrees | solar_altitude ( time ) |
Solar azimuth angle | degrees | solar_azimuth ( time ) |
Relative 'strength' of direct sun | unitless | sun_strength ( time ) |
Sunshine meter | unitless | sunny ( time ) |
Time offset from midnight | time ( time ) | |
Time offset from base_time | time_offset ( time ) |
Locations
- North Slope Alaska (NSA)
- Central Facility, Barrow AK (C1)
- Southern Great Plains (SGP)
- Central Facility, Lamont, OK (C1)
- Tropical Western Pacific (TWP)
- Central Facility, Manus I., PNG (C1)
- Central Facility, Nauru Island (C2)
- Central Facility, Darwin, Australia (C3)
- ARM Mobile Facility (FKB)
- Black Forest, Germany (M1)
- ARM Mobile Facility (GAN)
- Gan Airport, Gan Island, Maldives (M1)
- ARM Mobile Facility (GRW)
- Graciosa Island, Azores, Portugal (M1)
- ARM Mobile Facility (HFE)
- Shouxian, Anhui, China (M1)
- ARM Mobile Facility (NIM)
- Niamey, Niger (M1)
- ARM Mobile Facility (PVC)
- Highland Center, Cape Cod MA; AMF 1 (M1)
- ARM Mobile Facility (PYE)
- Point Reyes, CA (M1)
- ARM Mobile Facility (SBS)
- Steamboat Springs CO, Valley Site (M1)
Contact(s)
Victor Morris
(509) 372-6144
victor.morris@pnnl.gov