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Dataset Title: | Vunzik Lake |
Institution: | Remote Automatic Weather Stations (RAWS) (Dataset ID: raws_akavun) |
Information: | Summary | License | FGDC | ISO 19115 | Metadata | Background | Make a graph |
Attributes { s { time { UInt32 _ChunkSizes 512; String _CoordinateAxisType "Time"; Float64 actual_range 1.4308308e+9, 1.4961708e+9; String axis "T"; String calendar "gregorian"; String ioos_category "Time"; String long_name "Time"; String standard_name "time"; String time_origin "01-JAN-1970 00:00:00"; String units "seconds since 1970-01-01T00:00:00Z"; } latitude { String _CoordinateAxisType "Lat"; Float64 _FillValue NaN; Float64 actual_range 66.798056, 66.798056; String axis "Y"; String ioos_category "Location"; String long_name "Latitude"; String standard_name "latitude"; String units "degrees_north"; } longitude { String _CoordinateAxisType "Lon"; Float64 _FillValue NaN; Float64 actual_range -146.715833, -146.715833; String axis "X"; String ioos_category "Location"; String long_name "Longitude"; String standard_name "longitude"; String units "degrees_east"; } z { UInt32 _ChunkSizes 499; String _CoordinateAxisType "Height"; String _CoordinateZisPositive "up"; Float64 _FillValue NaN; Float64 actual_range 0.0, 0.0; String axis "Z"; String ioos_category "Location"; String long_name "Altitude"; String positive "up"; String standard_name "altitude"; String units "m"; } battery_voltage { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 12.3, 96.0; String ancillary_variables "battery_voltage_qc_agg battery_voltage_qc_tests"; String id "1094449"; String ioos_category "Other"; String long_name "Battery"; Float64 missing_value -9999.0; String platform "station"; String short_name "battery_voltage"; String standard_name "battery_voltage"; String standard_name_url "http://mmisw.org/ont/ioos/parameter/battery_voltage"; String units "V"; } battery_voltage_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 2, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Battery QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "battery_voltage_qc_agg"; String standard_name "aggregate_quality_flag"; } battery_voltage_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Battery QARTOD Individual Tests"; String short_name "battery_voltage_qc_tests"; String standard_name "quality_flag"; } fuel_temperature { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range -27.21, -0.5555; String ancillary_variables "fuel_temperature_qc_agg fuel_temperature_qc_tests"; String id "1094427"; String ioos_category "Other"; String long_name "Fuel Temperature"; Float64 missing_value -9999.0; String platform "station"; String short_name "fuel_temperature"; String standard_name "fuel_temperature"; String standard_name_url "http://mmisw.org/ont/unknown/parameter/fuel_temperature"; String units "degree_Celsius"; } fuel_temperature_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 2, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Fuel Temperature QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "fuel_temperature_qc_agg"; String standard_name "aggregate_quality_flag"; } fuel_temperature_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Fuel Temperature QARTOD Individual Tests"; String short_name "fuel_temperature_qc_tests"; String standard_name "quality_flag"; } fuel_moisture { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 12.6, 15.1; String ancillary_variables "fuel_moisture_qc_agg fuel_moisture_qc_tests"; String id "1094424"; String ioos_category "Other"; String long_name "Fuel Moisture"; Float64 missing_value -9999.0; String platform "station"; String short_name "fuel_moisture"; String standard_name "fuel_moisture"; String standard_name_url "http://mmisw.org/ont/unknown/parameter/fuel_moisture"; String units "%"; } fuel_moisture_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 2, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Fuel Moisture QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "fuel_moisture_qc_agg"; String standard_name "aggregate_quality_flag"; } fuel_moisture_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Fuel Moisture QARTOD Individual Tests"; String short_name "fuel_moisture_qc_tests"; String standard_name "quality_flag"; } relative_humidity { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 4.0, 100.0; String ancillary_variables "relative_humidity_qc_agg relative_humidity_qc_tests"; String id "1094421"; String ioos_category "Other"; String long_name "Relative Humidity"; Float64 missing_value -9999.0; String platform "station"; String short_name "relative_humidity"; String standard_name "relative_humidity"; String standard_name_url "http://mmisw.org/ont/cf/parameter/relative_humidity"; String units "%"; } relative_humidity_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 1, 4; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Relative Humidity QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "relative_humidity_qc_agg"; String standard_name "aggregate_quality_flag"; } relative_humidity_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; Float64 actual_range 22212111222, 22232311222; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Relative Humidity QARTOD Individual Tests"; String short_name "relative_humidity_qc_tests"; String standard_name "quality_flag"; } lwe_thickness_of_precipitation_amount { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 0.0, 220.5; String ancillary_variables "lwe_thickness_of_precipitation_amount_qc_agg lwe_thickness_of_precipitation_amount_qc_tests"; String id "1094431"; String ioos_category "Other"; String long_name "Precipitation (accumulation)"; Float64 missing_value -9999.0; String platform "station"; String short_name "lwe_thickness_of_precipitation_amount"; String standard_name "lwe_thickness_of_precipitation_amount"; String standard_name_url "http://mmisw.org/ont/cf/parameter/lwe_thickness_of_precipitation_amount"; String units "mm"; } lwe_thickness_of_precipitation_amount_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 1, 4; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Precipitation (accumulation) QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "lwe_thickness_of_precipitation_amount_qc_agg"; String standard_name "aggregate_quality_flag"; } lwe_thickness_of_precipitation_amount_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; Float64 actual_range 22212112222, 22212432222; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Precipitation (accumulation) QARTOD Individual Tests"; String short_name "lwe_thickness_of_precipitation_amount_qc_tests"; String standard_name "quality_flag"; } solar_irradiance { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 0.0, 1067.0; String ancillary_variables "solar_irradiance_qc_agg solar_irradiance_qc_tests"; String id "1094442"; String ioos_category "Other"; String long_name "Solar Radiation"; Float64 missing_value -9999.0; String platform "station"; String short_name "solar_irradiance"; String standard_name "solar_irradiance"; String standard_name_url "http://mmisw.org/ont/cf/parameter/solar_irradiance"; String units "W.m-2"; } solar_irradiance_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 1, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Solar Radiation QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "solar_irradiance_qc_agg"; String standard_name "aggregate_quality_flag"; } solar_irradiance_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; Float64 actual_range 22212122222, 22212222222; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Solar Radiation QARTOD Individual Tests"; String short_name "solar_irradiance_qc_tests"; String standard_name "quality_flag"; } air_temperature_cm_time__mean_over_pt24h { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range -42.77, 57.0; String ancillary_variables "air_temperature_cm_time__mean_over_pt24h_qc_agg air_temperature_cm_time__mean_over_pt24h_qc_tests"; String cell_methods "time: mean (interval: 24 hours)"; String id "1094418"; String ioos_category "Other"; String long_name "Air Temperature"; Float64 missing_value -9999.0; String platform "station"; String short_name "air_temperature"; String standard_name "air_temperature"; String standard_name_url "http://mmisw.org/ont/cf/parameter/air_temperature"; String units "degree_Celsius"; } air_temperature_cm_time__mean_over_pt24h_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 2, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Air Temperature QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "air_temperature_qc_agg"; String standard_name "aggregate_quality_flag"; } air_temperature_cm_time__mean_over_pt24h_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Air Temperature QARTOD Individual Tests"; String short_name "air_temperature_qc_tests"; String standard_name "quality_flag"; } wind_speed_of_gust { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 0.0, 250.54; String ancillary_variables "wind_speed_of_gust_qc_agg wind_speed_of_gust_qc_tests"; String id "1094447"; String ioos_category "Other"; String long_name "Wind Gust"; Float64 missing_value -9999.0; String platform "station"; String short_name "wind_speed_of_gust"; String standard_name "wind_speed_of_gust"; String standard_name_url "http://mmisw.org/ont/cf/parameter/wind_speed_of_gust"; String units "mile.hour-1"; } wind_speed_of_gust_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 2, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Wind Gust QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "wind_speed_of_gust_qc_agg"; String standard_name "aggregate_quality_flag"; } wind_speed_of_gust_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Wind Gust QARTOD Individual Tests"; String short_name "wind_speed_of_gust_qc_tests"; String standard_name "quality_flag"; } wind_speed { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 0.0, 11.18; String ancillary_variables "wind_speed_qc_agg wind_speed_qc_tests"; String id "1094436"; String ioos_category "Other"; String long_name "Wind Speed"; Float64 missing_value -9999.0; String platform "station"; String short_name "wind_speed"; String standard_name "wind_speed"; String standard_name_url "http://mmisw.org/ont/cf/parameter/wind_speed"; String units "m.s-1"; } wind_speed_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 1, 4; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Wind Speed QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "wind_speed_qc_agg"; String standard_name "aggregate_quality_flag"; } wind_speed_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; Float64 actual_range 22212111222, 22212211222; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Wind Speed QARTOD Individual Tests"; String short_name "wind_speed_qc_tests"; String standard_name "quality_flag"; } wind_from_direction { UInt32 _ChunkSizes 512; Float64 _FillValue -9999.0; Float64 actual_range 0.0, 360.0; String ancillary_variables "wind_from_direction_qc_agg wind_from_direction_qc_tests"; String id "1094439"; String ioos_category "Other"; String long_name "Wind From Direction"; Float64 missing_value -9999.0; String platform "station"; String short_name "wind_from_direction"; String standard_name "wind_from_direction"; String standard_name_url "http://mmisw.org/ont/cf/parameter/wind_from_direction"; String units "degrees"; } wind_from_direction_qc_agg { UInt32 _ChunkSizes 4096; Int32 _FillValue -127; Int32 actual_range 1, 2; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Wind From Direction QARTOD Aggregate Quality Flag"; Int32 missing_value -127; String short_name "wind_from_direction_qc_agg"; String standard_name "aggregate_quality_flag"; } wind_from_direction_qc_tests { UInt32 _ChunkSizes 512; Float64 _FillValue 0; Float64 actual_range 22212222222, 22212222222; String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test"; String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING"; Int32 flag_values 1, 2, 3, 4, 9; String ioos_category "Other"; String long_name "Wind From Direction QARTOD Individual Tests"; String short_name "wind_from_direction_qc_tests"; String standard_name "quality_flag"; } station { String cf_role "timeseries_id"; String ioos_category "Identifier"; String ioos_code "urn:ioos:station:com.axiomdatascience:121112"; String long_name "Vunzik Lake"; String short_name "raws_akavun"; String type "fixed"; } } NC_GLOBAL { String cdm_data_type "TimeSeries"; String cdm_timeseries_variables "station,longitude,latitude"; String contributor_email "feedback@axiomdatascience.com"; String contributor_name "Axiom Data Science"; String contributor_role "processor"; String contributor_role_vocabulary "NERC"; String contributor_url "https://www.axiomdatascience.com"; String Conventions "IOOS-1.2, CF-1.6, ACDD-1.3, NCCSV-1.2"; String creator_country "USA"; String creator_email "wrcc@dri.edu"; String creator_institution "Remote Automatic Weather Stations (RAWS)"; String creator_name "Remote Automatic Weather Stations (RAWS)"; String creator_sector "academic"; String creator_type "institution"; String creator_url "http://www.raws.dri.edu/"; String defaultDataQuery "air_temperature_cm_time__mean_over_pt24h,battery_voltage,wind_speed_qc_agg,relative_humidity_qc_agg,wind_speed_of_gust_qc_agg,air_temperature_cm_time__mean_over_pt24h_qc_agg,fuel_moisture,solar_irradiance,wind_speed_of_gust,fuel_temperature_qc_agg,lwe_thickness_of_precipitation_amount_qc_agg,fuel_temperature,wind_from_direction,wind_from_direction_qc_agg,fuel_moisture_qc_agg,battery_voltage_qc_agg,lwe_thickness_of_precipitation_amount,z,wind_speed,time,solar_irradiance_qc_agg,relative_humidity&time>=max(time)-3days"; Float64 Easternmost_Easting -146.715833; String featureType "TimeSeries"; Float64 geospatial_lat_max 66.798056; Float64 geospatial_lat_min 66.798056; String geospatial_lat_units "degrees_north"; Float64 geospatial_lon_max -146.715833; Float64 geospatial_lon_min -146.715833; String geospatial_lon_units "degrees_east"; Float64 geospatial_vertical_max 0.0; Float64 geospatial_vertical_min 0.0; String geospatial_vertical_positive "up"; String geospatial_vertical_units "m"; String history "Downloaded from Remote Automatic Weather Stations (RAWS) at 2024-12-12T14:28:01Z https://raws.dri.edu/cgi-bin/rawMAIN.pl?akAVUN 2024-12-12T14:28:01Z http://erddap.aoos.org/erddap/tabledap/raws_akavun.html"; Int32 id 121112; String infoUrl "https://sensors.ioos.us/#metadata/121112/station"; String institution "Remote Automatic Weather Stations (RAWS)"; String license "The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information."; String naming_authority "com.axiomdatascience"; Float64 Northernmost_Northing 66.798056; String platform "fixed"; String platform_name "Vunzik Lake"; String platform_vocabulary "http://mmisw.org/ont/ioos/platform"; String processing_level "Level 2"; String publisher_country "USA"; String publisher_email "wrcc@dri.edu"; String publisher_institution "Remote Automatic Weather Stations (RAWS)"; String publisher_name "Remote Automatic Weather Stations (RAWS)"; String publisher_sector "academic"; String publisher_type "institution"; String publisher_url "http://www.raws.dri.edu/"; String references "https://raws.dri.edu/cgi-bin/rawMAIN.pl?akAVUN,,"; String sourceUrl "https://raws.dri.edu/cgi-bin/rawMAIN.pl?akAVUN"; Float64 Southernmost_Northing 66.798056; String standard_name_vocabulary "CF Standard Name Table v72"; String station_id "121112"; String summary "Timeseries data from 'Vunzik Lake' (raws_akavun)"; String time_coverage_end "2017-05-30T19:00:00Z"; String time_coverage_start "2015-05-05T13:00:00Z"; String title "Vunzik Lake"; Float64 Westernmost_Easting -146.715833; } }
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.