getgiss {clim.pact} | R Documentation |
Reads the data from GISS available at URL:
http://www.giss.nasa.gov/data/update/gistemp/ or NARP data
from http://projects.met.no/~narp/data_index.html (http://thule.oulu.fi/narp/).
Also see getnordklim
, getdnmi
and getnacd
.
Use eg options(timeout=120)
if problems with retreaving the
GISS data. Some times, the code doesn't manage to read the data, and
returns with the message: "cannot open: HTTP status was '404 Not
Found'". Try again, since slow connections cause this problem.
One trick that often helps is to use the function to get the name of
the station (stations <- getgiss()
), then use a browser
(Mozilla) to open the data file from
http://www.giss.nasa.gov/data/update/gistemp/station_data/, and
then call getgiss
again with the station details. It is easier to access
the NARP data.
getgiss(stnr=NULL,location=NULL,lon=NULL,lat=NULL,stations=NULL,silent=FALSE) getnarp(stnr=NULL,location=NULL,lon=NULL,lat=NULL,stations=NULL,silent=FALSE,ele=101)
stnr |
Station number. |
location |
Name of locvation. |
lon |
longitude. If both lon and lat are
specified and the other arguments are not, then find the closest station. |
lat |
latitude. |
stations |
a list object with details of GISS stations (Prescribing this saves time). |
silent |
For verbose use. |
ele |
Element code: see http://projects.met.no/~narp/data_index.html. |
a <- list of "monthly.station.record" class:
val | The monthly values (a 12-column matrix with one column for each year). |
station | station number. |
yy | The years of observation (vector). |
lat,lon | Latitude and longitude of the location. |
x.0E65N,y.0E65N | Distance in km from 0E, 65N. |
location | Name of location . |
wmo.no | WMO number. |
start | Start of observatins from this location. |
yy0 | First year in current record. |
ele | Code of theelement. |
obs.name | Name of the element. |
unit | Unit of the element. |
country | The country in which the location is located. |
quality | Code/description for data quality. |
found | Flag: T - the data requested was found. |
ref | Reference for the data set. |
R.E. Benestad
## Not run: #GISS: obs.oxford <- getgiss(location="Oxford") # Takes longer time stations <- getgiss() obs.oxford <- getgiss(location="Oxford",stations=stations) #Quicker plotStation(obs.oxford) obs.broome <- getgiss(stnr="501942030004",stations=stations) obs.120E.40S <- getgiss(lon=120,lat=-40,stations=stations) #NARP: > obs <- getnarp(4360) #[1] "Retrieving the data from URL http://projects.met.no/~narp/narp" #[1] "Please be patient" #[1] "Found Tasilaq stnr= 4360 lon= -37.63 lat= 65.6 country= G" > obs <- getnarp(lon=-37,lat=65) #[1] "Retrieving the data from URL http://projects.met.no/~narp/narp" #[1] "Please be patient" #[1] "Find the nearest station to -37E and 65N." #[1] "Found Tasilaq stnr= 4360 lon= -37.63 lat= 65.6 country= G" > obs <- getnarp(lon=10,lat=60) #[1] "Retrieving the data from URL http://projects.met.no/~narp/narp" #[1] "Please be patient" #[1] "Find the nearest station to 10E and 60N." #[1] "Found Oslo stnr= 18700 lon= 10.72 lat= 59.95 country= N" ## End(Not run)