1   /* Copyright 2022-2025 Thales Alenia Space
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.models.earth.weather;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  
22  /** Container for pressure, temperature, and humidity.
23   * @param <T> type of the field elements
24   * @author Luc Maisonobe
25   * @since 12.1
26   */
27  public class FieldPressureTemperatureHumidity<T extends CalculusFieldElement<T>> extends FieldPressureTemperature<T> {
28  
29      /** Humidity as water vapor pressure (Pa). */
30      private final T waterVaporPressure;
31  
32      /** Mean temperature weighted with water vapor pressure. */
33      private final T tm;
34  
35      /** Water vapor decrease factor. */
36      private final T lambda;
37  
38      /** Simple constructor.
39       * @param altitude altitude at which weather parameters have been computed (m)
40       * @param pressure pressure (Pa)
41       * @param temperature temperature (Kelvin)
42       * @param waterVaporPressure humidity as water vapor pressure (Pa)
43       * @param tm mean temperature weighted with water vapor pressure
44       * @param lambda water vapor decrease factor
45       */
46      public FieldPressureTemperatureHumidity(final T altitude,
47                                              final T pressure,
48                                              final T temperature,
49                                              final T waterVaporPressure,
50                                              final T tm,
51                                              final T lambda) {
52          super(altitude, pressure, temperature);
53          this.waterVaporPressure = waterVaporPressure;
54          this.tm                 = tm;
55          this.lambda             = lambda;
56      }
57  
58      /** Simple constructor.
59       * @param field field to which elements belong
60       * @param weather regular weather parameters
61       */
62      public FieldPressureTemperatureHumidity(final Field<T> field, final PressureTemperatureHumidity weather) {
63          super(field, weather);
64          this.waterVaporPressure = field.getZero().newInstance(weather.getWaterVaporPressure());
65          this.tm                 = field.getZero().newInstance(weather.getTm());
66          this.lambda             = field.getZero().newInstance(weather.getLambda());
67      }
68  
69      /** Get humidity as water vapor pressure.
70       * @return humidity as water vapor pressure (Pa)
71       */
72      public T getWaterVaporPressure() {
73          return waterVaporPressure;
74      }
75  
76      /** Get mean temperature weighted with water vapor pressure.
77       * @return mean temperature weighted with water vapor pressure
78       */
79      public T getTm() {
80          return tm;
81      }
82  
83      /** Get water vapor decrease factor.
84       * @return water vapor decrease factor
85       */
86      public T getLambda() {
87          return lambda;
88      }
89  
90  }