Tag Archives: surface temperature

Summers are getting cooler in New York City

“New York City reached 100 degrees in 1952, 1953, 1954, 1955 and 1957 – but haven’t been over 100 degrees in the past seven years. Summers are getting cooler in New York, but the New York Times understands that their readers will believe anything they say, and this they can get away with any misinformation which suits their agenda.” click here

Coastal Antarctic stations show zero warming

Over the past few years, climate alarmists have increasingly been resorting to weather-ambulance chasing, which has necessitated the trotting of the globe in the search of weather anomalies to behold as proof of man-made climate change.

But one place they have been avoiding like the plague is Antarctica as a number of studies have been showing the opposite of what what predicted earlier has been happening down at the South Pole, except for volcanic activity beneath parts of the Antarctic ice shelf.” click here

Record cold US temperatures

“Since October 1 (start of the water year) afternoon temperatures have been second coldest on record.” click here

Heat island effect on surface temperature measurements underestimated

R.D. Leeper, J. Kochendorfer, T. Henderson, M.A. Palecki. Impacts of Small-Scale Urban Encroachment on Air Temperature Observations. Journal of Applied Meteorology and Climatology. https://doi.org/10.1175/JAMC-D-19-0002.1

A field experiment was performed in Oak Ridge, TN, with four instrumented towers placed over grass at increasing distances (4, 30, 50, 124, and 300 m) from a built-up area. Stations were aligned in such a way to simulate the impact of small-scale encroachment on temperature observations. As expected, temperature observations were warmest for the site closest to the built environment with an average temperature difference of 0.31 and 0.24 °C for aspirated and unaspirated sensors respectively. Mean aspirated temperature differences were greater during the evening (0.47 °C) than day (0.16 °C). This was particularly true for evenings following greater daytime solar insolation (20+ MJDay−1) with surface winds from the direction of the built environment where mean differences exceeded 0.80 °C. The impact of the built environment on air temperature diminished with distance with a warm bias only detectable out to tower-B’ located 50 meters away.

The experimental findings were comparable to a known case of urban encroachment at a U. S. Climate Reference Network station in Kingston, RI. The experimental and operational results both lead to reductions in the diurnal temperature range of ~0.39 °C for fan aspirated sensors. Interestingly, the unaspirated sensor had a larger reduction in DTR of 0.48 °C. These results suggest that small-scale urban encroachment within 50 meters of a station can have important impacts on daily temperature extrema (maximum and minimum) with the magnitude of these differences dependent upon prevailing environmental conditions and sensing technology.

Temperature reconstruction shows no warming in Central Asia

“Tree-ring evidence reveals recent cooling and glacier thickening in Central Asia as well as flat temperatures throughout the last 432 years.” click here

Surface temperature measurements confounded by urbanization around weather stations

“I’ve been saying for years that surface temperature measurements (and long term trends) have been affected by encroachment of urbanization on the placement of weather stations used to measure surface air temperature, and track long term climate. In doing so we found some hilariously bad examples of climate science in action, such as the official USHCN climate monitoring station at the University of Arizona, Tucson “ click here (from WUWT)

Washington Post claims Greenland is baking

“Temperatures in Greenland so far this year have been coldest since 1995, and 18th coldest since 1885.” click here