@prefix : <https://gwsp.cs.ksu.edu/drought-monitor/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@base <https://gwsp.cs.ksu.edu/drought-monitor/> .

<https://gwsp.cs.ksu.edu/drought-monitor/> rdf:type owl:Ontology ;
                                            <http://purl.org/dc/terms/creator> "GRIP, Kansas State University" ;
                                            <http://purl.org/dc/terms/license> <https://creativecommons.org/licenses/by/4.0/> ;
                                            <http://purl.org/dc/terms/title> "GRIP Drought Monitor Ontology"@en ;
                                            rdfs:comment "An ontology for representing weekly drought severity observations from the US Drought Monitor (USDM) at the state and county level. Each observation records the percentage of the geographic unit's area in each of six drought categories (None, D0 Abnormally Dry, D1 Moderate, D2 Severe, D3 Extreme, D4 Exceptional). The schema uses flat datatype properties for the six percentages on each observation, avoiding the triple bloat of representing each category as a separate individual. State and County classes are reused via stubs from the GRIP nutrient-management/environment module so that geographic concepts are shared across the GRIP ontology suite." ;
                                            rdfs:label "GRIP Drought Monitor Ontology" .

#################################################################
#    Annotation properties
#################################################################

###  http://purl.org/dc/terms/creator
<http://purl.org/dc/terms/creator> rdf:type owl:AnnotationProperty .


###  http://purl.org/dc/terms/license
<http://purl.org/dc/terms/license> rdf:type owl:AnnotationProperty .


###  http://purl.org/dc/terms/title
<http://purl.org/dc/terms/title> rdf:type owl:AnnotationProperty .


#################################################################
#    Datatypes
#################################################################

###  http://www.w3.org/2001/XMLSchema#date
xsd:date rdf:type rdfs:Datatype .


#################################################################
#    Object Properties
#################################################################

###  https://gwsp.cs.ksu.edu/drought-monitor/for_county
:for_county rdf:type owl:ObjectProperty ;
            rdfs:domain :County_Drought_Observation ;
            rdfs:range <https://gwsp.cs.ksu.edu/nutrient-management/environment/County> ;
            rdfs:comment "Links a County Drought Observation to the County it describes. Every County Drought Observation references exactly one County." ;
            rdfs:label "for county" .


###  https://gwsp.cs.ksu.edu/drought-monitor/for_state
:for_state rdf:type owl:ObjectProperty ;
           rdfs:domain :State_Drought_Observation ;
           rdfs:range <https://gwsp.cs.ksu.edu/nutrient-management/environment/State> ;
           rdfs:comment "Links a State Drought Observation to the State it describes. Every State Drought Observation references exactly one State." ;
           rdfs:label "for state" .


#################################################################
#    Data properties
#################################################################

###  https://gwsp.cs.ksu.edu/drought-monitor/has_d0_pct
:has_d0_pct rdf:type owl:DatatypeProperty ;
            rdfs:domain :Drought_Observation ;
            rdfs:range xsd:float ;
            rdfs:comment "The percentage of the area classified as D0 Abnormally Dry. D0 indicates short-term dryness slowing planting or crop growth, or some lingering water deficits. Range 0.0 to 100.0." ;
            rdfs:label "has D0 percent" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_d1_pct
:has_d1_pct rdf:type owl:DatatypeProperty ;
            rdfs:domain :Drought_Observation ;
            rdfs:range xsd:float ;
            rdfs:comment "The percentage of the area classified as D1 Moderate Drought. D1 indicates some damage to crops and pastures, streams, reservoirs, or wells low. Range 0.0 to 100.0." ;
            rdfs:label "has D1 percent" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_d2_pct
:has_d2_pct rdf:type owl:DatatypeProperty ;
            rdfs:domain :Drought_Observation ;
            rdfs:range xsd:float ;
            rdfs:comment "The percentage of the area classified as D2 Severe Drought. D2 indicates crop or pasture losses likely, water shortages common, water restrictions imposed. Range 0.0 to 100.0." ;
            rdfs:label "has D2 percent" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_d3_pct
:has_d3_pct rdf:type owl:DatatypeProperty ;
            rdfs:domain :Drought_Observation ;
            rdfs:range xsd:float ;
            rdfs:comment "The percentage of the area classified as D3 Extreme Drought. D3 indicates major crop or pasture losses, widespread water shortages or restrictions. Range 0.0 to 100.0." ;
            rdfs:label "has D3 percent" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_d4_pct
:has_d4_pct rdf:type owl:DatatypeProperty ;
            rdfs:domain :Drought_Observation ;
            rdfs:range xsd:float ;
            rdfs:comment "The percentage of the area classified as D4 Exceptional Drought. D4 indicates exceptional and widespread crop or pasture losses, shortages of water creating water emergencies. Range 0.0 to 100.0." ;
            rdfs:label "has D4 percent" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_none_pct
:has_none_pct rdf:type owl:DatatypeProperty ;
              rdfs:domain :Drought_Observation ;
              rdfs:range xsd:float ;
              rdfs:comment "The percentage of the area NOT in any drought category at the time of observation. Range 0.0 to 100.0. The six percentages (None + D0 + D1 + D2 + D3 + D4) sum to approximately 100." ;
              rdfs:label "has None percent" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_observation_date
:has_observation_date rdf:type owl:DatatypeProperty ;
                      rdfs:domain :Drought_Observation ;
                      rdfs:range xsd:date ;
                      rdfs:comment "The Tuesday release date of the weekly USDM map that this observation was extracted from. Stored as xsd:date in ISO 8601 format (YYYY-MM-DD)." ;
                      rdfs:label "has observation date" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_valid_from
:has_valid_from rdf:type owl:DatatypeProperty ;
                rdfs:domain :Drought_Observation ;
                rdfs:range xsd:date ;
                rdfs:comment "The first day of the one-week period covered by this observation (typically the Tuesday of the release week). Stored as xsd:date." ;
                rdfs:label "has valid from" .


###  https://gwsp.cs.ksu.edu/drought-monitor/has_valid_to
:has_valid_to rdf:type owl:DatatypeProperty ;
              rdfs:domain :Drought_Observation ;
              rdfs:range xsd:date ;
              rdfs:comment "The last day of the one-week period covered by this observation (typically the Monday following the release). Stored as xsd:date." ;
              rdfs:label "has valid to" .


#################################################################
#    Classes
#################################################################

###  https://gwsp.cs.ksu.edu/drought-monitor/County_Drought_Observation
:County_Drought_Observation rdf:type owl:Class ;
                            rdfs:subClassOf :Drought_Observation ,
                                            [ rdf:type owl:Restriction ;
                                              owl:onProperty :for_county ;
                                              owl:someValuesFrom <https://gwsp.cs.ksu.edu/nutrient-management/environment/County>
                                            ] ;
                            rdfs:comment "A weekly drought observation aggregated to the county level. The six percentages describe the share of the county area in each drought category. Linked to its target County via the for_county property. The parent state can be reached transitively through the County's is_in_state link." ;
                            rdfs:label "County Drought Observation" .


###  https://gwsp.cs.ksu.edu/drought-monitor/Drought_Observation
:Drought_Observation rdf:type owl:Class ;
                     rdfs:subClassOf [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_d0_pct ;
                                       owl:someValuesFrom xsd:float
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_d1_pct ;
                                       owl:someValuesFrom xsd:float
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_d2_pct ;
                                       owl:someValuesFrom xsd:float
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_d3_pct ;
                                       owl:someValuesFrom xsd:float
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_d4_pct ;
                                       owl:someValuesFrom xsd:float
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_none_pct ;
                                       owl:someValuesFrom xsd:float
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_observation_date ;
                                       owl:someValuesFrom xsd:date
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_valid_from ;
                                       owl:someValuesFrom xsd:date
                                     ] ,
                                     [ rdf:type owl:Restriction ;
                                       owl:onProperty :has_valid_to ;
                                       owl:someValuesFrom xsd:date
                                     ] ;
                     rdfs:comment "A single weekly observation of drought conditions for a geographic area, as reported by the US Drought Monitor (USDM). Each observation covers a one-week period (Tuesday to Monday) and records the percentage of the area that fell into each of six drought severity categories at the time of the snapshot. The six percentages always sum to 100. Drought Observation is the abstract superclass of State Drought Observation and County Drought Observation." ;
                     rdfs:label "Drought Observation" .


###  https://gwsp.cs.ksu.edu/drought-monitor/State_Drought_Observation
:State_Drought_Observation rdf:type owl:Class ;
                           rdfs:subClassOf :Drought_Observation ,
                                           [ rdf:type owl:Restriction ;
                                             owl:onProperty :for_state ;
                                             owl:someValuesFrom <https://gwsp.cs.ksu.edu/nutrient-management/environment/State>
                                           ] ;
                           rdfs:comment "A weekly drought observation aggregated to the state level. The six percentages describe the share of the state area in each drought category. Linked to its target State via the for_state property." ;
                           rdfs:label "State Drought Observation" .


###  https://gwsp.cs.ksu.edu/nutrient-management/environment/County
<https://gwsp.cs.ksu.edu/nutrient-management/environment/County> rdf:type owl:Class ;
                                                                 rdfs:comment "Stub. The full definition lives in the environment module (environment.ttl). Imported here because county-level drought observations target individual County instances." ;
                                                                 rdfs:label "County" .


###  https://gwsp.cs.ksu.edu/nutrient-management/environment/State
<https://gwsp.cs.ksu.edu/nutrient-management/environment/State> rdf:type owl:Class ;
                                                                rdfs:comment "Stub. The full definition lives in the environment module (environment.ttl). Imported here because every drought observation is anchored to a State or to a County within a State." ;
                                                                rdfs:label "State" .


#################################################################
#    Annotations
#################################################################

<https://creativecommons.org/licenses/by/4.0/> <http://purl.org/dc/terms/title> "Creative Commons Attribution 4.0 International"@en .


###  Generated by the OWL API (version 5.1.18) https://github.com/owlcs/owlapi/