How not to measure temperature, part 63

One of the strangest things I’ve learned in the past year about the US Historical Climatological Network is the propensity for placement of weather stations at sewage treatment plants. The…

The parking lot effect: temperature measurement bias of locations

NOTE: David Smith is doing experiments with the portable USB digital thermometers that are available here. This sort of experimentation is easy and inexpensive to do, and makes a great…

How not to measure temperature, part 62

One of the key criteria for placement of weather stations in the COOP, and by extension, the subset USHCN network is the requirement for a “warm body” (an observer) to read…

FTP access for Climate Reference Network Data

The CRN station at Mauna Loa, HI – I’m guessing the concrete pad was needed due to the cinders not being a stable anchoring medium.  So this station gets a…

USHCN Version 2 – prelims, expectations, and tests

USHCN2 unadjusted and adjusted CONUS max and min temperatures – click for larger image Background for new readers: The US Historical Climatological Network is a hand picked set of 1221…

What the modernized USHCN will look like

USHCN-M station at Greensboro, AL While I was at NCDC, Grant Goodge showed and provided me with a PowerPoint presentation about the plan to update the USHCN manual observing network…

Day 2 at NCDC and Press Release: NOAA to modernize USHCN

Click image for a live interactive view of the National Climatic Data Center in Asheville, NC Today started off terrible. I slipped in the bathtub last night at the hotel,…

How not to measure temperature, part 61 – maintenance optional

Every time I visit NOAA’s USHCN page I cringe when I see this phrase: “The United States Historical Climatology Network (USHCN) is a high quality, moderate-sized data set of daily…

How not to measure temperature, part 60

A good number of official climate stations of record in the USHCN network used for climate studies are at airports. All have been converted to the automated ASOS systems, and…

How not to measure temperature, part 59

I’ve mentioned this before, but it is worth mentioning again. In the 30 years I’ve been involved in meteorology, I had no idea that water and sewage treatment plants were…

How not to measure temperature, part 58 – Sacramento's rooftop weather stations

While looking all over the USA at weather stations, I overlooked an interesting station very nearly in my own backyard. Sacramento. This official climate station, COOP ID #047633 is much…

How not to measure temperature part 57

One of the surfacestations.org intrepid traveling volunteers, Eric Gamberg, has been traveling through Nebraska as of late, picking up stations as he goes. He recently visited the USHCN station of…

How not to measure temperature, part 56

Our newest volunteer at surfacestations.org is Keith Taylor, and he’s gotten off to a great start with 2 stations in 2 days. His first was the climate station of record…

How not to measure temperature, part 55

Surfacestations.org volunteers Liz and Don Healy captured this official USHCN climate station of record (COOP ID #22659) in Douglas Arizona on their cross country trip this winter. As is typical…

How not to measure temperature, part 54: Los Angeles, the city

Please click the picture then continue reading. This is the city. Los Angeles, California. I study weather stations here. I carry a thermometer. My name’s Anthony. The story you are about…

How not to measure temperature, part 53: Find the NOAA thermometer in this picture

Click picture to find the thermometer One of the things learned from the www.surfacestations.org project is how the conversion of standard mercury thermometers in Stevenson Screens to the newer MMTS…

Over 500 USHCN Climate Stations Now Surveyed

The survey project continues to move forward, even in these cold and snowy winter months. I’m pleased to announce that we have just passed the 500 mark for surveyed stations.…

Cedarville and GISS adjustments

I got to thinking from discussions with Steve Mosher and others at Climate Audit about just what sort of adjustments might be made to a place with a good record…

How not to measure temperature, part 52: Another UFA sighted in Arizona

My post How not to measure temperature, part 51 was also cross posted over at Climate Audit, and has created quite a stir when Atmoz, who is at the University…

How not to measure temperature, part 51.

While we’ve taken some detours looking at some of the amazing things that have happened globally for temperature in January, with another detour to the sun, our www.surfacestations.org volunteers continue…