diff --git a/VehicleKeeper/schema.json b/VehicleKeeper/schema.json
index 1c5c1fa..a33360a 100644
--- a/VehicleKeeper/schema.json
+++ b/VehicleKeeper/schema.json
@@ -1,10 +1,10 @@
 {
-  "$schema": "http://json-schema.org/schema#",
-  "$schemaVersion": "0.0.1",
-  "$id": "https://smart-data-models.github.io/dataModel.ERA/Certificate/schema.json",
-  "modelTags": "ERA vocabulary, railway, train",
-  "license": "https://smart-data-models.github.io/dataModel.ERA/Certificate/LICENSE.md",
-  "derivedFrom": "http://data.europa.eu/949/VehicleKeeper",
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$schemaVersion": "0.3.4",
+  "modelTags": "IUDX",
+  "$id": "https://smart-data-models.github.io/dataModel.Weather/WeatherObserved/schema.json",
+  "title": "Weather Observed schema - Smart Data Models",
+  "description": "An observation of weather conditions at a certain place and time. This data model has been developed in cooperation with mobile operators and the GSMA.",
   "type": "object",
   "allOf": [
     {
@@ -13,22 +13,133 @@
     {
       "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
     },
+    {
+      "$ref": "https://smart-data-models.github.io/dataModel.Weather/weather-schema.json#/definitions/Weather-Commons"
+    },
     {
       "properties": {
         "type": {
           "type": "string",
           "enum": [
-            "VehicleKeeper"
+            "WeatherObserved"
+          ],
+          "description": "Property. NGSI Entity type. It has to be WeatherObserved"
+        },
+        "dateObserved": {
+          "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/dateObserved"
+        },
+        "precipitation": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. Amount of water rain registered. Units:'Liters per square meter'. "
+        },
+        "solarRadiation": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. The solar radiation observed measured in Watts per square. Units:'w/m2'"
+        },
+        "directIrradiation": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. Direct irradiance is the part of the solar irradiance that directly reaches a surface. Units:'w/m2'"
+        },
+        "diffuseIrradiation": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. Diffuse irradiance is the part of the solar irradiance that is scattered by the atmosphere. Units:'w/m2'"
+        },
+        "pressureTendency": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "falling",
+                "raising",
+                "steady"
+              ]
+            },
+            {
+              "type": "number"
+            }
+          ],
+          "description": "Property. Enum:'falling, raising, steady'. Is the pressure rising or falling? It can be expressed in quantitative terms or qualitative terms"
+        },
+        "dewPoint": {
+          "type": "number",
+          "description": "Property. Model:'https://schema.org/Number'. Units:'Celsius degrees'. The dew point encoded as a number. Observed temperature to which air must be cooled to become saturated with water vapor"
+        },
+        "refDevice": {
+          "anyOf": [
+            {
+              "type": "string",
+              "minLength": 1,
+              "maxLength": 256,
+              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
+              "description": "Property. Identifier format of any NGSI entity"
+            },
+            {
+              "type": "string",
+              "format": "uri",
+              "description": "Property. Identifier format of any NGSI entity"
+            }
           ],
-          "description": "Property. NGSI data type. It has to be VehicleKeeper"
+          "description": "Relationship. Model:'https://schema.org/URL'. A reference to the device(s) which captured this observation"
+        },
+        "streamGauge": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. The water level surface elevation observed by Hydrometric measurement sensors, namely a [Stream Gauge](https://en.wikipedia.org/wiki/Stream_gauge) expressed in centimeters. Units:'centimeters'"
+        },
+        "snowHeight": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. The snow height observed by generic snow depth measurement sensors, expressed in centimeters. Units:'centimeters'"
+        },
+        "uVIndexMax": {
+          "type": "number",
+          "minimum": 0,
+          "description": "Property. Model:'https://schema.org/Number'. The maximum UV index for the period, based on the World Health Organization's UV Index measure. [http://www.who.int/uv/intersunprogramme/activities/uv_index/en/](http://www.who.int/uv/intersunprogramme/activities/uv_index/en/) the values between 1 and 11 are the valid range for the index. The value 0 is for describing that no signal is detected so no value is stored"
+        },
+        "aqiMajorPollutant": {
+          "type": "string",
+          "description": "Property. Model:'https://schema.org/Text'. Major pollutant in the Air Quality Index (AQI)"
+        },
+        "aqiMajorPollutantForecast": {
+          "type": "string",
+          "description": "Property. Model:'https://schema.org/Text'. Forecasted major air pollutant in the Air Quality Index (AQI) over a certain duration in future"
+        },
+        "airTemperatureForecast": {
+          "type": "number",
+          "description": "Property. Model:'https://schema.org/Number'. Forecasted value of air temperature over a certain duration in future"
+        },
+        "precipitationForecast": {
+          "type": "number",
+          "description": "Property. Model:'https://schema.org/Number'. Forecasted rainfall over a certain duration in future"
+        },
+        "airQualityIndex": {
+          "type": "number",
+          "description": "Property. Model:'https://schema.org/Number'. Air quality index is a number used to report the quality of the air on any given day"
+        },
+        "relativeHumidityForecast": {
+          "type": "number",
+          "description": "Property. Model:'https://schema.org/Number'. Forecasted relative humidity (water vapour in air) over a certain duration in future"
+        },
+        "airQualityIndexForecast": {
+          "type": "number",
+          "description": "Property. Model:'https://schema.org/Number'. Forecasted overall Air Quality Index (AQI) over a certain duration in future"
+        },
+        "airTemperatureTSA": {
+          "type": "object",
+          "description": "Property. Air temperature time series aggregation",
+          "$ref": "https://smart-data-models.github.io/dataModel.Environment/Environment-schema.json#/definitions/TimeSeriesAggregation"
         }
       }
     }
   ],
   "required": [
     "id",
-    "type"
-  ],
-  "title": "VehicleKeeper + mapped from ERA ontology by Smart Data Models",
-  "description": "A company or organization that owns or operates a certain vehicle."
+    "type",
+    "dateObserved",
+    "location"
+  ]
 }
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