{"id":275282,"date":"2021-02-02T15:41:50","date_gmt":"2021-02-02T14:41:50","guid":{"rendered":"https:\/\/weenat.com\/feuchttemperatur-messung-und-genaue-ueberwachung-des-frostrisikos\/"},"modified":"2025-12-12T07:49:51","modified_gmt":"2025-12-12T06:49:51","slug":"por-que-medir-la-temperatura-de-bulbo-humedo-para-consultar-el-riesgo-de-helada-con-precision","status":"publish","type":"post","link":"https:\/\/preprod.weenat.com\/es\/por-que-medir-la-temperatura-de-bulbo-humedo-para-consultar-el-riesgo-de-helada-con-precision\/","title":{"rendered":"\u00bfPor qu\u00e9 hay que medir la temperatura de bulbo h\u00famedo para consultar el riesgo de helada con precisi\u00f3n?"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00bb1&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_row _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><strong>\u00bfVa a helar esta noche?<\/strong><\/p>\n<p><span>Todos los viticultores y arboricultores ya se han hecho esta pregunta, y la respuesta es muy importante.<\/span><\/p>\n<p><span>En caso de error, los da\u00f1os pueden ser considerables<\/span><\/p>\n<p><strong>\u00bfC\u00f3mo responder a la pregunta?<\/strong><\/p>\n<p><span>Para protegerse de las heladas, tampoco es que haya much\u00edsimas soluciones. Sencillamente hay que medir el riesgo y, para ello, <strong>hay que conocer la temperatura de bulbo h\u00famedo en tus terrenos<\/strong>.<\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2020\/01\/gel-arboriculture.jpg\u00bb alt=\u00bbgel-arboriculture\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb module_alignment=\u00bbcenter\u00bb module_alignment_tablet=\u00bbcenter\u00bb module_alignment_phone=\u00bbcenter\u00bb module_alignment_last_edited=\u00bbon|phone\u00bb border_radii=\u00bbon|10px|10px|10px|10px\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bba911bbfb-d5ea-4b1c-a805-a3c8d79268a7&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h2><a name=\"_Toc155111193\"><\/a>\u00bfQu\u00e9 es la temperatura de bulbo h\u00famedo?<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>La temperatura de bulbo h\u00famedo es un indicador agrometeorol\u00f3gico que corresponde a la <strong>sensaci\u00f3n t\u00e9rmica sentida por los brotes de los cultivos cuando hay agua (lluvia o roc\u00edo) en los terrenos<\/strong>.<\/span><\/p>\n<p>Dicha temperatura tiene en cuenta la <strong>presencia de humedad<\/strong>, que es imprescindible para <span><a href=\"https:\/\/weenat.com\/es\/anticipacion-de-heladas\/\"><strong>medir la helada<\/strong><\/a> por evaporaci\u00f3n y saber cu\u00e1ndo activar los mecanismos de protecci\u00f3n contra las heladas primaverales.<\/span><\/p>\n<p><span>Sea cual sea la temperatura en tus terrenos, la temperatura de bulbo h\u00famedo <strong>siempre ser\u00e1 inferior o igual a la de bulbo seco. <\/strong><\/span><\/p>\n<p><span>\u27a1\ufe0f Cuando el aire est\u00e1 <strong>saturado de humedad<\/strong>, es decir, cuando la humedad es igual al 100\u00a0%, <strong>la temperatura de bulbo h\u00famedo es igual a la temperatura de bulbo seco. <\/strong><\/span><\/p>\n<p><span>\u27a1\ufe0f Pero cuanto\u00a0<strong>m\u00e1s baje la humedad<\/strong>, <strong>mayor ser\u00e1 la diferencia<\/strong> entre la temperatura de bulbo h\u00famedo y la de bulbo seco.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.19.5&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bba911bbfb-d5ea-4b1c-a805-a3c8d79268a7&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h2>\u00bfPara qu\u00e9 sirve la temperatura de bulbo h\u00famedo?<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p class=\"P68B1DB1-Normal5\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">Cuando la humedad es inferior al 100\u00a0%, el agua presente en los terrenos se evapora (en cantidades \u00ednfimas). Para ello, el agua utiliza la energ\u00eda presente en el aire, lo que provoca que este se enfr\u00ede.<o:p><\/o:p><\/span><\/p>\n<p class=\"P68B1DB1-Normal4\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><strong><span lang=\"ES\">En este caso, hablamos de \u00abhelada por evaporaci\u00f3n\u00bb<\/span><\/strong><span lang=\"ES\" style=\"color: #032735;\"><o:p><\/o:p><\/span><\/p>\n<p class=\"P68B1DB1-Normal5\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">Para medir ese tipo de heladas, hay que conocer la temperatura de bulbo h\u00famedo. Con ella se puede tener en cuenta el enfriamiento del aire provocado por la evaporaci\u00f3n.<o:p><\/o:p><\/span><\/p>\n<p class=\"P68B1DB1-Normal5\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">Si la humedad es del 100 %, coincidir\u00e1 con la temperatura de bulbo seco, <\/span><span style=\"font-size: 18px;\">pero cuanto m\u00e1s baje la humedad, m\u00e1s bajar\u00e1 tambi\u00e9n la temperatura de bulbo h\u00famedo con respecto a la de bulbo seco.<\/span><\/p>\n<p class=\"P68B1DB1-Normal5\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">En caso de gran diferencia entre ambas temperaturas y de bajada de temperaturas,<strong> el riesgo de helada por evaporaci\u00f3n es alto.<\/strong><o:p><\/o:p><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bba911bbfb-d5ea-4b1c-a805-a3c8d79268a7&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h2><\/a>\u00bfC\u00f3mo conocer la temperatura de bulbo h\u00famedo?<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bb65c18883-29a7-430c-8bf0-55f723063a9f\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h3>Con el Sensor de Heladas\u00a0<\/h3>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>Para medir la temperatura de bulbo h\u00famedo, una de las sondas del sensor de heladas de Weenat est\u00e1 rodeada de un cord\u00f3n sumergido en agua para que la sonda permanezca ligeramente h\u00fameda de manera permanente.<\/span><\/p>\n<p><span>Con este m\u00e9todo se consigue un control preciso de la temperatura de bulbo h\u00famedo<\/span><\/p>\n<p>Adem\u00e1s, se realiza en tiempo real, porque cuando la temperatura baja de 5\u00a0\u00b0C, el <span><a href=\"https:\/\/weenat.com\/es\/sensores\/sensor-heladas\/\"><strong>sensor de heladas<\/strong><\/a> de Weenat empieza a transmitir cada 5 minutos.<\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/01\/Capteur-gel-vergers-retouche.webp\u00bb alt=\u00bbCapteur gel Weenat\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb width=\u00bb90%\u00bb border_radii=\u00bbon|10px|10px|10px|10px\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p style=\"text-align: center;\"><em>El sensor de hielo Weenat en el centro de un huerto.<\/em><\/p>\n<p>[\/et_pb_text][et_pb_button button_url=\u00bb@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjIxMjU1In19@\u00bb button_text=\u00bbDESCUBRIR EL SENSOR DE HELADAS DE WEENAT \u00bb _builder_version=\u00bb4.27.4&#8243; _dynamic_attributes=\u00bbbutton_url\u00bb _module_preset=\u00bb_initial\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.17.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.17.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bb65c18883-29a7-430c-8bf0-55f723063a9f\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h3>El c\u00e1lculo<\/h3>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p>En cambio, otros fabricantes de <strong>estaciones agrometeorol\u00f3gicas eligen otro m\u00e9todo<\/strong>.<\/p>\n<p><span>En lugar de medir la temperatura de bulbo h\u00famedo, se basan en una f\u00f3rmula matem\u00e1tica para estimarla en un momento determinado.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bba911bbfb-d5ea-4b1c-a805-a3c8d79268a7&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h2><a name=\"_Toc155111196\"><\/a>\u00bfPor qu\u00e9 no basta con calcular la temperatura de bulbo h\u00famedo?<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>Este m\u00e9todo plantea varios interrogantes.<\/span><\/p>\n<p><span>Efectivamente, se puede calcular la temperatura de bulbo h\u00famedo bas\u00e1ndose en la temperatura de bulbo seco y la humedad. Esta es la f\u00f3rmula m\u00e1s utilizada:<\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2021\/02\/Image6.png\u00bb alt=\u00bbUne formule math\u00e9matique pour calculer la temp\u00e9rature humide.\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><em>\u03c9 = tasa de humedad (wetness) relaci\u00f3n de mezcla (gramos de vapor de agua \/ kilogramos de aire seco)<\/em><\/p>\n<p><em>P = presi\u00f3n en pascales<\/em><\/p>\n<p><em>Con las constantes: <\/em><\/p>\n<p><em>L\u00a0= energ\u00eda para evaporar el agua (poco dependiente de la temperatura pero alrededor de 2500\u00a0J\/g)<\/em><\/p>\n<p><em>C<sub>p<\/sub> = calor espec\u00edfico a presi\u00f3n constante del aire (1005\u00a0J.kg<sup>-1<\/sup>.K<sup>-1<\/sup>)<\/em><\/p>\n<p><em>p<sub>A<\/sub> = 2,53 x 10<sup>8<\/sup>\u00a0kPa<\/em><\/p>\n<p><em>T<sub>B<\/sub> = 5,42 x 103\u00a0K<\/em><\/p>\n<p><span><em>e = raz\u00f3n de masas molares del agua y del aire (0,622 sin dimensi\u00f3n)\u00a0<\/em> <\/span><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>El primer obst\u00e1culo es que el c\u00e1lculo utiliza varios par\u00e1metros que requieren aparatos de medici\u00f3n rigurosos y precisos, sobre todo con respecto a la humedad: si se sobrestima, se corre el riesgo de no detectar la helada.<\/span><\/p>\n<p><span>Adem\u00e1s, se suele calcular a partir de temperaturas y humedades medidas en abrigo meteorol\u00f3gico y lejos de los brotes, con lo que no se consigue tener en cuenta el impacto del viento y de la radiaci\u00f3n en la sensaci\u00f3n t\u00e9rmica real del brote. <\/span><\/p>\n<p><strong>No obstante, la f\u00f3rmula se puede simplificar de la siguiente manera:<\/strong><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2021\/02\/Image7.png\u00bb alt=\u00bbUn graphique pour calculer la temp\u00e9rature humide et le risque de gel\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>De hecho, varios sensores se basan en este tipo de f\u00f3rmula para controlar la temperatura de bulbo h\u00famedo.<\/span><\/p>\n<p><span>El problema principal es que dichos c\u00e1lculos solo son precisos entre 15\u00a0\u00b0C y 35\u00a0\u00b0C. M\u00e1s all\u00e1 de ese rango, el riesgo de error aumenta r\u00e1pidamente.<\/span><\/p>\n<p><span>Se observa claramente en esta gr\u00e1fica trazada a partir de la f\u00f3rmula simplificada: cuanto m\u00e1s bajan las temperaturas, m\u00e1s se acercan las gr\u00e1ficas y m\u00e1s dif\u00edcil resulta determinar con precisi\u00f3n la temperatura de bulbo h\u00famedo.<\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2021\/02\/graphique-temperature-humide.jpg\u00bb alt=\u00bbgraphique-temperature-humide\u00bb align=\u00bbcenter\u00bb align_tablet=\u00bbcenter\u00bb align_phone=\u00bbcenter\u00bb align_last_edited=\u00bbon|phone\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>Bastante problem\u00e1tico en caso de helada<\/span><\/p>\n<p><span>Las <strong>temperaturas cercanas a 0\u00a0\u00b0C son precisamente las que interesan.<\/strong><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bb65c18883-29a7-430c-8bf0-55f723063a9f\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<h3>C\u00e1lculo aproximado de la temperatura de bulbo h\u00famedo Veamos un experimento<\/h3>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p><span>Para entender mejor las consecuencias de un c\u00e1lculo aproximado de la temperatura de bulbo h\u00famedo, nuestros ingenieros agr\u00f3nomos han realizado un <strong>sencillo experimento<\/strong>:<\/span><\/p>\n<p>Han <strong>comparado las temperaturas de bulbo h\u00famedo medidas por el sensor de Weenat<\/strong> <strong>en situaci\u00f3n real<\/strong> (<strong>en <span style=\"color: #fb8500;\">naranja<\/span><\/strong> en el gr\u00e1fico de abajo) y las <strong>temperaturas de bulbo h\u00famedo calculadas<\/strong> a partir de una f\u00f3rmula simplificada frecuentemente utilizada (en <span style=\"color: #0172a4;\"><strong>azul<\/strong><\/span>).<\/p>\n<p><span>As\u00ed han podido comprobar que la temperatura de bulbo h\u00famedo calculada estaba <strong>casi sistem\u00e1ticamente sobrestimada cuando las temperaturas se acercaban a los 0\u00a0\u00b0C. <\/strong><\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2024\/02\/Temperatura-humedad-experiencia-calculo-mesura-1.webp\u00bb alt=\u00bbTemperatura-humedad-experiencia-calculo-mesura\u00bb align=\u00bbcenter\u00bb align_tablet=\u00bbcenter\u00bb align_phone=\u00bbcenter\u00bb align_last_edited=\u00bbon|phone\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.24.0&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb]<\/p>\n<p class=\"P68B1DB1-Normal10\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">Por ejemplo, el 12 de abril de 2021 a las 3\u00a0h, hel\u00f3 porque las temperaturas bajaron a <b>-2\u00a0\u00b0C<\/b>, pero la <b>temperatura<\/b> <b>calculada<\/b> indicaba <b>+2\u00a0\u00b0C<\/b>. Tambi\u00e9n se observ\u00f3 el mismo desajuste d\u00edas m\u00e1s tarde, el 14 de abril.<o:p><\/o:p><\/span><\/p>\n<p class=\"P68B1DB1-Normal4\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">En este caso daba igual, porque solo era un experimento<\/span><span lang=\"ES\" style=\"color: #032735;\"><o:p><\/o:p><\/span><\/p>\n<p class=\"P68B1DB1-Normal5\" style=\"line-height: 19.2pt; vertical-align: baseline;\"><span lang=\"ES\">Pero para tus vi\u00f1edos o \u00e1rboles frutales, esa diferencia entre la temperatura de bulbo h\u00famedo calculada y la medida podr\u00eda ser determinante, porque un error de unos grados a veces es suficiente para pasar por alto un episodio de heladas primaverales y perder una parte de la cosecha.<o:p><\/o:p><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1&#8243; _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_row _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbe49f4310-8203-4d88-8ba7-557b1f2000f5&#8243; global_colors_info=\u00bb{}\u00bb column_structure=\u00bb1_2,1_2&#8243; theme_builder_area=\u00bbpost_content\u00bb][et_pb_column type=\u00bb1_2&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bba911bbfb-d5ea-4b1c-a805-a3c8d79268a7&#8243; text_font=\u00bb|600|||||||\u00bb text_font_size=\u00bb30px\u00bb text_line_height=\u00bb40px\u00bb hover_enabled=\u00bb0&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<p class=\"P68B1DB1-Normal5\"><span lang=\"ES\" style=\"color: #ffffff;\">Mide el riesgo de heladas con Weenat para proteger mejor tus cultivos:<\/span><\/p>\n<p>[\/et_pb_text][et_pb_code module_class=\u00bbhs-cta-trigger-   hs-cta-trigger-  -287293313225&#8243; _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_orientation=\u00bbcenter\u00bb module_alignment=\u00bbcenter\u00bb hover_enabled=\u00bb0&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-287293314293\"<!-- [et_pb_line_break_holder] -->  style=\u00bbmax-width:100%; max-height:100%; width:240px;height:42.3984375px\u00bb data-hubspot-wrapper-cta-id=\u00bb287293314293&#8243;><!-- [et_pb_line_break_holder] -->  <a href=\"https:\/\/cta-eu1.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLJx8eAN%2BJDKVVTsVmNtXL6p%2FGxSNPpDBU%2B65BBGI4WLo%2FdTvrhLtpMfbwm9ny4y4daa8VrMZd6mcSrRAWwmk4phXET2XT3hz%2BFP2ob1Da%2BKrG8%3D&#038;webInteractiveContentId=287293314293&#038;portalId=145695827\" target=\"_blank\" rel=\"noopener\" crossorigin=\"anonymous\"><!-- [et_pb_line_break_holder] -->    <img decoding=\"async\" alt=\"PEDIR PRESUPUESTO\" loading=\"lazy\" src=\"https:\/\/hubspot-no-cache-eu1-prod.s3.amazonaws.com\/cta\/default\/145695827\/interactive-287293314293.png\" style=\"height: 100%; width: 100%; object-fit: fill\"<!-- [et_pb_line_break_holder] -->      onerror=\u00bbthis.style.display=&#8217;none'\u00bb \/><!-- [et_pb_line_break_holder] -->  <\/a><!-- [et_pb_line_break_holder] --><\/div>\n<p>[\/et_pb_code][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bba911bbfb-d5ea-4b1c-a805-a3c8d79268a7&#8243; hover_enabled=\u00bb0&#8243; global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb sticky_enabled=\u00bb0&#8243; text_text_color=\u00bb#FFFFFF\u00bb]<\/p>\n<ul>\n<li><span lang=\"ES\">Control de heladas en tiempo real<\/span><\/li>\n<li><span lang=\"ES\">Radar de granizo <\/span><\/li>\n<li><span lang=\"ES\">Alertas telef\u00f3nicas 24\/24<\/span><\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00bb1_2&#8243; _builder_version=\u00bb4.16&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb][et_pb_image src=\u00bbhttps:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/01\/capteur-gel-saumur-champigny-2.webp\u00bb alt=\u00bbcapteur-gel-weenat saumur-champigny\u00bb title_text=\u00bbcapteur-gel-saumur-champigny-2&#8243; _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb theme_builder_area=\u00bbpost_content\u00bb border_radii=\u00bbon|10px|10px|10px|10px\u00bb hover_enabled=\u00bb0&#8243; sticky_enabled=\u00bb0&#8243;][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00bfVa a helar esta noche? Todos los viticultores y arboricultores ya se han hecho esta pregunta, y la respuesta es muy importante. En caso de error, los da\u00f1os pueden ser considerables \u00bfC\u00f3mo responder a la pregunta? Para protegerse de las heladas, tampoco es que haya much\u00edsimas soluciones. Sencillamente hay que medir el riesgo y, para [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":89294,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[133,138],"tags":[],"class_list":["post-275282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-heladas","category-meteorologia-agricola"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Definici\u00f3n, medici\u00f3n y c\u00e1lculo de la temperatura de bulbo h\u00famedo | Weenat<\/title>\n<meta name=\"description\" content=\"\u00bfPara qu\u00e9 sirve la temperatura de bulbo h\u00famedo? \u00bfC\u00f3mo se puede utilizar para organizar los mecanismos contra las heladas? \u00bfPor qu\u00e9 no es fiable calcularla?\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Definici\u00f3n, medici\u00f3n y c\u00e1lculo de la temperatura de bulbo h\u00famedo | Weenat\" \/>\n<meta property=\"og:description\" content=\"\u00bfPara qu\u00e9 sirve la temperatura de bulbo h\u00famedo? 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