NEWS
Updated
07/30/2012Â
New paper in process, see details
here
NOTE: Surfacestations.org gallery server
has received heavy traffic and some attacks in the last 24hrs.
The online image database aka gallery server site has been put
into safe mode to secure backups and make it more secure.
After months of work,
our paper has been accepted, read summaries on the
paper at these locations:
Dr. Roger Pielke Senior's website
here
Dr. John Neilsen-Gammon's website
here
Anthony Watts website
here
Media Resource - download PDF
here
Link to the paper (final print quality), Fall et al 2011
here (updated)
Fall et all 2011 supplementary information
here
![](Figure1_USHCN_Pie.jpg)
Surfacestations project
reaches 82.5% of the network surveyed.
1007 of 1221 stations have been examined in
the USHCN network. The Google Earth map below shows current
coverage.
![USHCN surveyed 7-14-09](http://etepc.haryanakishaan.com/files/2009/07/ushcn-surveyed-7-14-09.jpg)
Â
![crn_ratings](http://etepc.haryanakishaan.com/files/2009/02/crn_ratings.png)
Reference for site ratings: NOAA's
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Mid
term census report of the Surface Stations Project: Is
the U.S. Surface Temperature Record Reliable? - click cover
image at left to download a PDF document. Now at 80%, and
with a majority sample that is spatially well distributed, a
full analysis will be coming in the next few months. We will
however continue to survey stations in the hope of locating
more CRN1 and CRN2 stations due to their rarity.
The upcoming papers will feature statistical
analysis of the nationwide USHCN network in the context of
siting.
Â
Direct link to PDF of the report is
here
Â
HELP NEEDED FOR SURVEYS IN
THE FOLLOWING STATES:
Kansas, Nebraska,
Arkansas, Illinois, Missouri, North Dakota, Idaho, South
Dakota, Texas.
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Station quality ratings
obtained from NOAA/NCDC via this source:
Climate Reference
Network Rating Guide - adopted from NCDC Climate Reference
Network Handbook, 2002,
specifications for siting (section 2.2.1) of NOAA's new
Climate Reference Network:
Class 1 (CRN1)- Flat and horizontal ground surrounded by a
clear surface with a slope below 1/3 (<19deg). Grass/low
vegetation ground cover <10 centimeters high. Sensors
located at least 100 meters from artificial heating or
reflecting surfaces, such as buildings, concrete surfaces,
and parking lots. Far from large bodies of water, except if
it is representative of the area, and then located at least
100 meters away. No shading when the sun elevation >3
degrees.
Class 2 (CRN2) - Same as Class 1 with the following differences.
Surrounding Vegetation <25 centimeters. No artificial
heating sources within 30m. No shading for a sun elevation
>5deg.
Class 3 (CRN3) (error >=1C) - Same as Class 2, except no artificial
heating sources within 10 meters.
Class 4 (CRN4) (error >= 2C) - Artificial heating sources <10
meters.
Class 5 (CRN5) (error >= 5C) - Temperature sensor located next
to/above an artificial heating source, such a building, roof
top, parking lot, or concrete surface."
![](images/USHCN_equip.gif) Â
- MMTS Thermometer
Specifications/Guide has been posted in
resources
- Latest updates feature
added - see
newest
stations hereÂ
|
![](images/home_button.gif) ![](images/contact_button.gif)
![](images/Aplus-sites.JPG) |
Get
Involved! help us document weather stations in
the USA and the world. |
![安卓手机加速](images/shame-sites.jpg) |
Odd and
irregular observing Sites looking at some of these observing
sites you have to wonder: "what were they thinking"? |
![](images/square-mouse.jpg) |
Resources
links to useful and pertinent documents, images,
drawings, specifications, and web sites. |
Visit the blog to see highlighted examples of poorly
sited stations in the "How
Not to measure Temperature" series.
Site launched on 06/04/07
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USHCN Sites surveyed so far:
1068
USHCN Sites rated so far:
1007
USHCN Sites remaining:
214Â
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-
Roger Pielke Sr., University of Colorado, June 1st, 2007
Other news:
Florida Completed!
Nevada USHCN surveys
completed
California USHCN
surveys completed! See
all California stations here
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A look at how changes in
paint on Stevenson Screens
may have affected temperature measurement.
Now Online:
Conference
presentation given at CIRES/UCAR
on 8/29/07 describing this
project and the methods used to assign station site quality
ratings, along with examples of many site issues seen thus
far.
Click to view slideshow
旋风加速器安卓Android官网,免费加速器APP - 旋风官方安 ...:2021-5-23 · 旋风加速器安卓Android为您提供百个海外节点加速器,为您访问境外网站提供更快速的免费加速访问体验,是目前市面已知的最知名的免费安卓Android版本加速器APP; Bob Thompson, Eric Gamberg, Russ Steele,
David Smith, and Don Kostuch, who turned summer travels into
survey expeditions. Don Kostuch has surveyed more stations,
and covered a broader geographic area than any other surveyor.
Thanks to all!
Â
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