What's the difference between upwind and windward?

Upwind


Definition:

  • (v. t.) To wind up.

Example Sentences:

  • (1) Fifty-eight households were studied in the Red Pond community, the site of the established smelter and several backyard smelters, and 21 households were studied in the adjacent, upwind Ebony Vale community in Saint Catherine Parish, Jamaica.
  • (2) triseriatus and Haemagogus equinus), were used in a flight chamber in which females must fly upwind against the direction of the sound waves and around the ultrasonic devices to reach a trap downwind of a source of human breath and skin emanations.
  • (3) Samples of the gaseous effluent were collected inside the aeration building, inside the building's stack, 300 meters upwind (background sampler), and 300 meters downwind (test sampler), using Andersen samplers.
  • (4) Upwind the number of yeast colony-forming units was zero.
  • (5) Surely anyone in their right mind is thinking about how we can reduce pollution but they want to build another runway here, upwind of London ?
  • (6) A 6.1 m long suction trap, with multiple air inlets located on its upwind, top, ends and downwind sides, was placed on a freely pivoting raft moored in a large borrow pit.
  • (7) The proportion of mice showing estrus when placed 2 upwind was significantly less than that of mice downwind or of mice beloii but not different from that of females remote from males.
  • (8) The concentrations of 15 polycyclic aromatic hydrocarbons (PAH) were determined in ambient air particles sampled at four sites in an urban and industrialized area in The Netherlands, and at one site near the coast (generally upwind).
  • (9) Fifty percent of an Amblyomma variegatum female population were able to find upwind-positioned targets containing the synthetic aggregation-attachment pheromone of this species or the pheromone component o-nitrophenol alone.
  • (10) However, if the air current carries sex pheromone, then upwind movement is elicited.
  • (11) Male and female Manduca sexta flew upwind in response to the odor of female sex-pheromone gland extract or fresh tobacco leaf respectively, and generated very similar zigzagging tracks along the odor plume.
  • (12) Take-off was significantly orientated upwind during the period when swormlure-4 was added to the airstream, and significantly orientated downwind in the period after the addition of swormlure-4.
  • (13) Upwind of the flame-torch exposure the level was below the exposure limit, whereas downwind lead concentrations of up to ten times the exposure limit were observed.
  • (14) These results indicate that two peripheral processes related to excessive concentration, complete adaptation of antennal neurons, or merely the attenuation of fluctuations in burst frequency, are important determinants of when upwind progress by a moth flying in a pheromone plume stops and changes to station keeping.
  • (15) We suggest that these basal crosslinks support the long vestibular stereocilia rendering them more rigid, and that the upwind pointing crosslinks are responsible for the initiation of sensory transduction.
  • (16) Three responses to simulated yaw were noted: Yaw-correcting upwind turning tendencies (Figs.
  • (17) Trends from 1979 to 1987 were studied for the number of days per year ozone exceeded the NAAQS standard, the second-highest ozone level observed per year, and the first quartile summertime average ozone observed, as well as the mean difference between the ozone level observed downwind and upwind of the city.
  • (18) Such a trend could not be found for the total number of colony-forming units (yeasts, molds, and bacteria) although the upwind concentration was slightly lower than the downwind concentration.
  • (19) The particles sampled upwind dominated the mutagenicity in the area; in contrast to the locally emitted particles, their effects decreased in the presence of S9 fraction.
  • (20) When tobacco hornworm moths (Manduca sexta) are tested in a wind tunnel with a source of female pheromones upwind, males but not normal females show pheromone-modulated anemotaxis and a characteristic mate-seeking behavioural sequence.

Windward


Definition:

  • (n.) The point or side from which the wind blows; as, to ply to the windward; -- opposed to leeward.
  • (a.) Situated toward the point from which the wind blows; as, the Windward Islands.
  • (adv.) Toward the wind; in the direction from which the wind blows.

Example Sentences:

  • (1) The estimated number of dengue infections in the Windward Islands was about 20,000.
  • (2) The genetic differentiation mainly due to genetic drift and founder effect between France and this isolate and between the Leeward (parish of Gustavia) and Windward (parish of Lorient) areas within the island is discussed.
  • (3) This is the windward coast, so the water is seldom calm enough for swimming, but just north of the hotel lies a small, empty beach dotted with shells.
  • (4) aegypti, is amply available in the Windward and Leeward islands of the Antilles.
  • (5) Reefs of the windward Southeast Hawaiian Islands, US Management is improving around the main Hawaiian islands such as Oahu and Maui, but over-fishing and organic sediment from plantations remain major threats.
  • (6) Dew-point sensors recorded temperatures under the garments at ambient and chest (windward site) and midscapular sites.
  • (7) A survey of microfilaraemia among the population of Vanua Levu, Taveuni and Koro islands in northern Fiji was conducted in 1968 and 1969 as a prelude to a campaign of mass treatment with diethylcarbamazine.The prevalences of microfilaraemia were found in the more moist conditions of Taveuni and Koro and on the windward southern side of Vanua Levu to be higher than on the drier northern side of Vanua Levu.

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