Image Metadata File

Person Submitting Metadata/Point of Contact:

Name: Laura Stevens
Physical Address: 151 Patton Ave Asheville, NC 28801
Organization: CICSNC
Email:
Phone:

Image Info:

Image Title:
Decadal time series of an extreme precipitation index
Image Description:
Time series (1901-2011) of decadal values of an index (standardized to 1) of the number of 2-day precipitation totals exceeding a threshold for a 1 in 5-year occurrence for 7 regions and the U.S. as a whole, expressed as the deviation from the long-term average. This was based on daily COOP data from long-term stations in the National Climatic Data Center’s Global Historical Climate Network data set. Only stations with less than 10% missing daily temperature data are used in this analysis. Events are first identified for each individual station by ranking all daily precipitation values and choosing the top N/5 events, where N is the number of years of data for that particular station. Then, event numbers for each year are averaged for all stations in each 1x1° grid box. Next, a regional average is determined by averaging the values for the individual grid boxes. Finally, the results were averaged over decadal periods. The far right bar in each graph represents the 11-year period of 2001-2011.
Attributes (variables name, description and units):
Relative number of heavy precipitation events (/ decade)
Temporal domain:
Start Time: 1895-01-01 00:00:00.0
End Time: 2010-12-31 00:00:00.0
Spatial domain:
Max latitude: 49.3125
Min latitude: 25.1875
Max longitude: -67.0625
Min longitude: -124.688
Keywords:
Contiguous U.S., Observed, USGHCN Daily, Precipitation
Usage Limitations/Constraints:
Citation of image source:

Panels within image: 8

1st:
Image Title:
Northwest
2nd:
Image Title:
Great Plains-North
3rd:
Image Title:
Midwest
4th:
Image Title:
Northeast
5th:
Image Title:
Southwest
6th:
Image Title:
Great Plains South
7th:
Image Title:
Southeast
8th:
Image Title:
US

Image Creation:

Who created the image:
Name: Ken Kunkel
Physical Address:
Organization: CICSNC
Email:
Phone:
When was image created (YYYY-MM-DD):

Data Sources:

Dataset #1
Dataset Name: USGHCN Daily
Dataset Version:
Dataset Description: Global Historical Climatology Network - Daily
Dataset ID:
Dataset Release/Publication Date:
Affiliated Organization Name and Role: NOAA NCDC/Russ Vose
Date Accessed: 2011-06-06 00:00:00.0
Dataset Location (ftp, URL, etc): ftp://ftp.ncdc.noaa.gov/pub/data/ghcn/daily/
Data qualifier (QA/QC, etc):
The denominator of the scale of the source/output:
Spatial Reference system used by the source/output:
Citation to metadata:
Description of the scope of a resource, quality report, or process:
Spatial Extent of the source/output (polygon, box or region name): National
Temporal extent of the source/output: 1895-01-01 to 2011-12-31
Vertical extent of the source/output:
Identifier of the processing level of the source/input:
Spatial resolution of the source/output: 1 km

Processes:

References: