Sentences with phrase «giss analysis»

In it Hansen et al write, «[15] The current GISS analysis employs several independent input data streams that are publicly available on the Internet and updated monthly.

After examination of all of the stations in this region, five of the USHCN station records were altered in the GISS analysis because of inhomogeneities with neighboring stations (data prior to 1927 for Lake Spaulding, data prior to 1929 for Orleans, data prior to 1911 for Electra Ph, data prior of 1906 for Willows 6W, and all data for Crater Lake NPS HQ were omitted), so these apparent data flaws would not be transmitted to adjusted periurban and urban stations.

For the GISS analysis, normal always means the average over the 30 - year period 1951 - 1980 for that place and time of year.

How did the GISS analysis and their sources change over time, and how did this affect the results?

This is why the GISS analysis deals with anomalies rather than absolute temperatures.

The GISS analysis is carried out at two spatial resolutions: 1,200 km and 250 km.

Hansen, J., R. Ruedy, J. Glascoe, and M. Sato, 1999: GISS analysis of surface temperature change.

We use version 2 (GHCNv2) of this data record (6) because it is the version employed in the documented GISS analysis (5).

In the Hansen et al. (1999) paper the GISS analysis was based on GHCN data alone; in the meantime, the group working at NOAA / NCEI had taken a closer look at the US data, an investigation that resulted in substantial modifications compensating for station moves, procedural changes, etc..

One of the observational records employed in the GISS analysis is the Global Historical Climatology Network (GHCN) data set for surface air temperature at meteorological stations, which is maintained by the National Oceanic and Atmospheric Administration (NOAA) National Climatic Data Center (NCDC).

[Response: Hansen appropriately acknowledges that if the data are seriously flawed, then the GISS analysis will have included those flaws.

The GISS analysis [1] extrapolates observations as far as 1200 km from measurement points, thus covering practically the entire globe.

I this case, he over-reaches and uses innuendo - style smears to point out that BEST is wrong, while not admitting to the fact he did not do the GISS analysis correctly.

[2] The current GISS analysis employs NOAA ERSST.v5 for sea surface temperature, GHCN.v.3.3.0 for meteorological stations, and Antarctic research station data, as described in reference 1.

Figure 3 compares the GISS analysis of global temperature change with the case in which the polar regions, specifically regions poleward of 64 degrees latitude, are excluded from the analysis.

The GISS analysis is updated monthly

(3) the 12 - month running mean global temperature in the GISS analysis has reached a new record in 2010.

Because the GISS analysis combines available sea surface temperature records with meteorological station measurements, we test alternative choices for the ocean data, showing that global temperature change is sensitive to estimated temperature change in polar regions where observations are limited.

+ For more information about how the GISS analysis compares to other global analysis of global temperatures, visit: http://earthobservatory.nasa.gov/blogs/earthmatters/2015/01/21/why-so-many-global-temperature-records/

The current GISS analysis also uses satellite measurements of nightlights to identify urban areas and remote stations in the United States (and southern Canada and northern Mexico); only «unlit» stations are used to define homogeneity adjustments.

That mishap was corrected at 5:30 PM; however, the replacement files were created by a newer version of the GISS analysis.

The source of the monthly mean station temperatures for the GISS analysis is the Global Historical Climatology Network (GHCN) of Peterson and Vose [1997] and updates, available electronically, from the National Climatic Data Center (NCDC).

Hence the (insignificant) impact on the GISS analysis was slightly different from the impact described in that document.

In the new GISS analysis the hinge year is a variable chosen to be that which allows the adjusted urban record to fit the mean of its neighbors most precisely.

The urban adjustment is improved in the current GISS analysis.

July 15, 2015: Starting with today's update, the standard GISS analysis is no longer based on ERSST v3b but on the newer ERSST v4.

The data quality control, including comparison of each station with its several nearest neighbors, is the same in the current GISS analysis as described by Hansen et al. [1999].

2011 was only the ninth warmest year in the GISS analysis of global temperature change, yet nine of the ten warmest years in the instrumental record (since 1880) have occurred in the 21st century.

GISS analysis of surface temperature change.

In contrast, the GISS analysis extrapolates data in those regions using information from the nearest available monitoring stations, and thus has more complete coverage of the polar areas.

Satellite infrared observations, as discussed by Hansen et al. (2010), support our conclusion that the GISS analysis does not exaggerate Arctic temperature anomalies, indeed, the anomalies seem to be conservative.

They find about 0.25 °C less Arctic warming during the past decade than in the GISS analysis, a difference that they attribute to our method of interpolating and extrapolating data, especially into the Arctic Ocean regions where no station data are available.

Only 908 stations used for the October 2008 GISS analysis whereas some 40 yerars ago there were double the number of stations used to derive an average global temperature.

In your preferred dataset it is.5, in the GISS analysis it is.45 Re Lindzen's point, what do you think he means by «climate internal variability»?

Jumps in stations temperatures are indeed found in the NOAA data processing and are incorporated into the GISS analysis.

Arctic temperatures are directly measured by the Arctic Buoy program, but in the GISS analysis, the temperatures are extrapolated from nearby land stations.

In 2001 Hansen et al. published the following: «The U.S. annual (January - December) mean temperature is slightly warmer in 1934 than in 1998 in the GISS analysis (Plate 6).

In the GISS analysis, 1990 sneaks into the top ten (displacing 1997), and so the phrase would have been in the last 16 years (assuming it's written in 2006).

Final Update 11 pm 16 Dec: The GISS analysis is back!

For more information on how the UHI effect is removed from the GISS analysis, see Hansen et al, 2001

Update 7 pm: The GISS analysis curiously appears to have gone off line....

Although there were differences in the details of the three groups» results, the NCDC and GISS analyses broadly confirmed the «warming Earth» findings of the CRU and MOHC scientists.

Not exact matches

«Details of the analyses differ in the small details, but the overall picture is very clear and coherent,» NASA scientist Gavin Schmidt, director of NASA's Goddard Institute for Space Studies (GISS), explained to reporters at a press event.

This trend continues a long - term warming of the planet, according to an analysis of surface temperature measurements by scientists at NASA's Goddard Institute of Space Studies (GISS) in New York.

The 2015 temperatures continue a long - term warming trend, according to analyses by scientists at NASA's Goddard Institute for Space Studies (GISS) in New York (GISTEMP).

The monthly analysis by the GISS team is assembled from publicly available data acquired by about 6,300 meteorological stations around the world, ship - and buoy - based instruments measuring sea surface temperature, and Antarctic research stations.

NASA GISS Surface Temperature Analysis (GISSTEMP) describes how NASA handles the urban heat effect and links to current data.

Last Friday, NASA GISS and NOAA NCDC had a press conference and jointly announced the end - of - year analysis for the 2014 global surface temperature anomaly which, in both analyses, came out top.

Anyhow, I question the validity of FFT analysis of the final GISS and HadCRUT3 temperature anomaly products — because they have been so «averaged» as to be suspect for that purpose.

All I questioned was ``... the validity of FFT analysis of the final GISS and HadCRUT3 temperature anomaly products...»