Remote sensors of Vegetable Activity to protect areas resistant to low soil moisture

Corte de Madera has a high vegetable activity measured by satellite despite the extreme drought conditions of the State during the years 2020-2021. Napa Valley suffered a severe decline in vegetable activity just after the rainy season of 2020 in April. It happened before the wildfires that affect the region in August 2020. Dixie region had a declining rainy season of 2020 and 2021 (November to April). The wildfires started in August. Satellite images could be a low-cost strategy to build an Early Warning System for wildfires.

Global warming and wine quality: are we close to the tipping point?

Wine grapes are one of the most lucrative crops in the world and this value is founded heavily on traditional winegrowing regions established over hundreds of years. These regions are now experiencing marked changes in climate. People speculate that global warming could reshape the distribution of premium wine-growing regions, pushing regions to higher latitudes and elevations with cooler temperatures. A major redistribution of this kind would be catastrophic for numerous regional economies. Here we examine relationships between warming, fruit ripening, and wine quality in two renowned red wine regions; Napa Valley, California, USA, and Bordeaux, France. We show that both regions have warmed substantially over the past 60+ years and that until now this warming has contributed to increases in the average wine quality. However, ripening relationships revealed that we are reaching a plateau and raise concerns that we may be approaching a tipping point in traditional wine-growing regions.

An Empirical Analysis of the Effect of Sub-Divisions of American Viticultural Areas on Wine Prices: A Hedonic Study of Napa Valley

American Viticultural Areas (AVAs) are descriptors of where wine grapes are grown that are designed to capture qualities unique to the wine and to influence its price. Sub-AVAs are sub-divisions of well-known AVAs designed to have the same effect. In this paper, I study the impact of the Napa Valley Sub-AVA system on the pricing and rating of Napa Valley wines. The analysis utilizes a primary hedonic pricing model to isolate both the individual Sub-AVA's price effect and the system's cumulative price effect. This study uses a unique dataset of 5,017 Napa Valley wines reviewed by the Connoisseurs’ Guide to California Wine over the 10-year period from 2004–2013. Estimated price effects persist even after controlling for rating differences, implying that consumers value the wines of sub-AVA's independently of critics’ ratings. These results indicate that Sub-AVAs deliver a more substantial price effect than previous literature has suggested. (JEL Classifications: C01, L10, L66, O13)

Automated Seeded Latent Dirichlet Allocation for Social Media Based Event Detection and Mapping

In the event of a natural disaster, geo-tagged Tweets are an immediate source of information for locating casualties and damages, and for supporting disaster management. Topic modeling can help in detecting disaster-related Tweets in the noisy Twitter stream in an unsupervised manner. However, the results of topic models are difficult to interpret and require manual identification of one or more “disaster topics”. Immediate disaster response would benefit from a fully automated process for interpreting the modeled topics and extracting disaster relevant information. Initializing the topic model with a set of seed words already allows to directly identify the corresponding disaster topic. In order to enable an automated end-to-end process, we automatically generate seed words using older Tweets from the same geographic area. The results of two past events (Napa Valley earthquake 2014 and hurricane Harvey 2017) show that the geospatial distribution of Tweets identified as disaster related conforms with the officially released disaster footprints. The suggested approach is applicable when there is a single topic of interest and comparative data available.

Ilustraciones del presente número : obras de Daniel García

Daniel García es artista plastico y ha participado de numerosas muestras individuales y colectivas desde 19181. Su obra integra colecciones publicas y privadas, entre las que se cuentan la del museo Nacional de Bellas Artes (MNBA), el Museo Castagnino+macro de Rosario, el Museo Caraffa de Córdoba, el Museo de Arte Contemporáneo de Salta, el Museo de Arte Contemporánero de Bahia Blanca, el Museo de Arte Latinoamericano de Buenos Aires (MALBA), el fondo Nacional de las Artes y la Hess Collection (Napa Valley, Estados Unidos y colomé, Salta). Durante 25 años ha ilustrado cubiertas de libros para Beatriz Viterbo Editora. ha publicado los libros Casi Boyitas, Yo soy Gilda (junto a Gilda Di Crosta), Un gato que camina solo, (Ivan Rosado, 2014) y Bandido (Ivan Rosado, 2015)

Authentic Culinary Tourism Experiences: The Perspectives of Locals

Culinary experiences have long been an important aspect of tourism. For many destinations, culinary offerings have become ubiquitous with the place – pasta in Italy, wine in the Loire- or Napa Valley, or curry in India. As tourists increasingly seek out authentic touristic experiences, including culinary experiences, the question arises regarding what constitutes an authentic culinary experience in a place. While authentic and authenticity are terms widely used in the tourism literature, a precise definition of what those terms mean and a method for identifying that which is authentic remains elusive. Research regarding authenticity in tourism suggests that locals occupy a ‘place of privilege’ with respect to determining the authenticity of a touristic experience because of their connection to and context in relation to the place. This paper examines the perspectives of Prince Edward Island (PEI) residents with respect to what constitutes an authentic culinary touristic experience in which visitors to Canada’s smallest province can partake and that provide those visitors with a glimpse of what life in PEI is or was really like, and provides a voice for an underrepresented group in the authenticity discourse. Results show that authentic culinary experiences transcend food, and encompass people, places, and experiences in ways that enrich touristic endeavours, and that locals understand and interpret authenticity in ways that both conform to and differ from existing scholarly work related to tourism authenticity, and span objective, existential, and constructive authenticity.