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System News
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Station #176 (La Quinta) Disconnected
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June 15, 2007
Station 176, La Quinta, was removed from service on October 3, 2006 due to land use changes. The station has been in service since November of 2000 serving the Riverside Area. The property owner wanted to put the land to a different use and the weather station equipment has been removed.
Coachella Valley Water District (cooperator) is currently looking for a new location to place the equipment. We will annonce as soon as that is know.
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Station #27 (Zamora) disconnected
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August 22, 2006
Station #27 was disconnected on 11 May 2006, after more than two decades of continuous recordings. Zamora has been located in a pasture and is now being discontinued because the land is being replanted in almonds. Zamora was established on 5 December 1982, and is an excellent example of station longevity.
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#177 Watsonville West
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May 17, 2006
The Watsonville West #177 station has been disconnected from the network for an undetermined time. This was due to land use changes and the loss of use of the site. We regret any inconvenience this may cause and we hope the new site will be ready shortly to reinsatll the station.
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New Station #198 Santa Paula
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March 27, 2006
A new standardized CIMIS ETo station #198 Santa Paula is being sponsored by the University of CA. Santa Paula is located at the western portion of the Santa Clara River Valley which has a mixture of urban and agricultural areas. Primary crops consist of mostly lemon and avocado trees and some mixed vegetable row crops.
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Station Problems 12/15/05
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December 15, 2005
Stations 88, 144, 171, & 192 are experiencing communication difficulties. Station 135 appears to have a failed pyranometer. Stations 106 & 137 are experiencing severe anemometer problems. Station 182 had battery problems which caused some hourly data to go missing between Dec 2 - 14. This problem has been resolved and the other problems we are working on. We apologize for any inconvenience this may have caused.
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New Station #199 Big Bear Lake
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September 26, 2005
City of Big Bear Lake water and Power is sponsoring a new standardized CIMIS ETo station. City of Big Bear Lake is located high in the San Bernardino Mountains on the south western portion of the San Bernardino County. City of Big Bear Lake has become an urban center for the people that have come to enjoy the many recreational activities that are available to them in both the winter and summer months.
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New station #195
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May 12, 2005
Located Southwest of Auburn near Newcastle, California, there is an old Victorian farmhouse, affectionately referred to as the Heritage Center. In the yard surrounding this home there is an ample plot of grass, which is the location of Station #195, Auburn. This station is owned and operated by the Placer County Water Agency (PCWA), and was added to our network in February 2005. This station will add coverage to the Sierra foothills for this well established agricultural area that is rapidly developing. The CIMIS station is a part of the PCWA heritage and learning center, which will demonstrate the benefits of ETo based irrigation scheduling. A plan was discussed to add additional instrumentation inside the center, where real time weather data can be monitored. This station makes a nice addition to the network, as it assists the local residents including agricultural and landscape water users, farm advisors, and other irrigation specialists in their efforts to manage the water resources.
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Piru (#101) removed
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March 08, 2005
The Piru station (#101) has been removed from the CIMIS network because the station was destroyed by the recent flooding in Southern California. CIMIS staff is in discussion with the United Water Conservation District regarding the possiblity of replacing the station. We will post further information as it becomes available.
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New Station #194
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December 14, 2004
CIMIS weather station #194 Oakdale was recently installed by San Joaquin District staff with assistance from Office of Water Use Efficiency staff and Oakdale Irrigation District personnel. The new CIMIS weather station is located in an irrigated pasture near the intersection of Albers and Claribel Rds., about one mile south of the city of Oakdale. Installation occurred on November 2, 2004. This weather station will serve an area not currently covered in the CIMIS network and is the 38th CIMIS station in the San Joaquin District. Climatological data collected by the station and reference ETo computed will be used by local farmers, landscape managers and others in scheduling irrigations for their crops, irrigated landscapes and related work and investigations.
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Station #62 back on line!
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August 09, 2004
The Rancho California Water District was working on fixing the power supply problem and anticipates to have the station reporting in a couple of weeks. If you have any quetions about utilizing another stations data to replace station #62 missing data please contact Sergio Fierro at 818-543-4652. We appologize for the inconvienence.
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New Station #192
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April 28, 2004
Activated On March 20, 2004 -
the Station is a standard ETo station with a reference surface of grass.
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New Station # 190
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December 17, 2003
CIMIS weather station #190 Five Points South West was installed on July 2, 2003. The CIMIS weather station is located in a parcel of irrigated grass in the middle of a large farming operation southwest of Five Points in Fresno County. This weather station is on the site of the Red Rock Ranch Integrated On-Farm Drainage Management Demonstration Project. Installation at this site was requested by the San Joaquin District Integrated Drainage Management Section to help in their efforts to deal with on-farm drainage problems in the local area. Climatological data collected by the station will be used by local farmers to accurately schedule crop irrigation needs using evapotranspiration based data and in the various ongoing on-farm drainage activities at the Red Rock Ranch.
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Station #49 Disconnected
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December 17, 2003
Station #49 (Oceanside) has been disconnected from the CIMIS network as of October 29, 2003 due to site requirements not being met. The Oceanside public golf course where the station was located did not have the intentions of maintaining or reestablishing the prescribed site requirements necessary to have a CIMIS station generating reliable ETo values. There are no plans in the future to reestablish a CIMIS station in the region at this time.
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New Station #187
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August 06, 2003
The new station Black Point #187 is replacing a station that had previously gone off line recently in the same region of Marin County.
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#30 ETo Turned on
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August 01, 2003
ETo will again be posted for CIMIS weather station #30, Nicolaus, in Sutter County. ETo for Nicolaus was "turned off" in the Fall of 2001 due to land use changes. The landowner has renewed the pasture and the siting conditions are once again in substantial compliance with the CIMIS weather station siting requirements for the estimation of ETo.
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New Station, #189
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May 09, 2003
Owens Lake South, CIMIS weather station #189, began collecting data on April 1, 2003. CIMIS station #189 is located near Cartago, California within the Southern portion of Owens Lake basin. Station #189 is owned by Los Angeles Department of Water and Power. Plans are for the data from this weather station to be used to estimate evapotranspiration. At this time #189 is a Non-ETo station due to siting constraints. As soon as the surroundings substantially meets CIMIS siting criteria ETo will be estimated.
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Change in ETo status
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May 01, 2003
As of May 1, 2003, CIMIS weather station #111, Green Valley Road will be a non-ETo weather station. The siting conditions surrounding the weather station have degraded to the point that estimation of ETo is not reasonable. This situation will change if and when the cooperator returns the siting conditions to substantial compliance with the DWR/CIMIS siting requirements. All other weather data will continue to be posted as before.
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QC change
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December 20, 2007
Otay #147 monthly and daily averages were cloned to CIMIS station #51 thus significantly changing the ETo normal year averages.
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IMPORTANT - Sta. 182
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December 16, 2005
The entire record of Hourly solar radiation mean from the Delano CIMIS weather station is incorrect.
The Daily solar radiation mean found in the database for Delano is erroneous for the period from 3/21/2002 to 5/20/2002.
To convert the Daily solar radiation mean for this period, multiply the Daily value found in the database by 0.4755.
An incorrect multiplier was used for the solar pyranometer upon installation. The telephone line used to interrogate the data logger was not available until mid-May, 2002. Once the erroneous multiplier was found, the correct multiplier was inserted in the data logger and the Hourly solar radiation values were corrected in the database.
We apologize for any inconvenience.
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Station#183 QC Change
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September 21, 2004
On 8/18/03 the cloud cover was left cloned to station #35 Bishop but the Monthly ETo and Daily QC were cloned to station #55 Palm Desert.
On 9/29/03 the Monthly ETo & Daily QC was cloned to Seely #68.
On 12/02/03 Monthly ETo & QC were reclonned to match those of Station #35.
On 7/30/04 changed mo & daily QC from #55 to #68 in DB only.
On 9/20/04 clonned to #35.
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Station #189 QC Changed
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September 21, 2004
On 8/18/03 station #189 Monthly ETo and Daily QC were cloned to station #55 Palm Desert. Cloud cover remained cloned to station #35 Bishop.
On 9/29/03 the Monthly ETo & Daily QC was changed to Seely #68.
On 12/02/03 Monthly ETo & QC were reclonned to match those of Station #35.
On 7/30/04 changed mo & daily QC from #55 to #68 in DB only.
On 9/20/04 clonned to #35.
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Station #185 Temp. Disc.
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November 13, 2003
Station 185, UC-Mex, has been temporarily discontinued due to consistant cellular telecommunication problems. If the cooperator is able to resolve the situation, the station will be brought back on-line. At this time it is not known when and if the station will return to the network.
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New Station - 182
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May 09, 2003
The Delano Earlimart Irrigation District is cooperating in sponsoring a new CIMIS weather station. The new station will represent the region surrounding the Delano Earlimart Irrigation District Offices. This new station fills a data gap that has existed in this region since the removal of the McFarland CIMIS weather station (#031). The Delano CIMIS weather station began reporting in March of 2002.
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New station - 168
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May 09, 2003
The Turlock Irrigation District is cooperating in sponsoring a new CIMIS weather station. The new station, located East of Denair, will fill a data gap for the region. The Denair CIMIS weather station began reporting in August of 2002.
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Station #172 Relocated
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April 28, 2004
CIMIS weather station #172 Lost Hills Northwest was taken out of service on July 1, 2003. The station was a non-ETo reporting station and the data being collected was no longer of interest to the cooperator and DWR. The equipment was subsequently moved to the Red Rock Ranch Integrated On-Farm Drainage Management Demonstration Project.
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CIMIS DB Maintenance
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June 07, 2005
The CIMIS data base maintenance has been rescheduled for Friday May 13, @ 5:00 PM and will be unavailable for up to 48 hours.
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Station #154 Disconnected
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October 07, 2004
Due to prolonged inactivity station 154 has been terminated as of 10/7/04.
Station #154 (Salton Sea North) was to be disconnected from the CIMIS network for a period of 5 months beginning October 29, 2003.
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Lake Arrowhead QC change
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July 14, 2004
The Lake Arrowhead #192 station QC clonning has been updated to Bishop #35 on July 13, 2004.
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Station removal
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August 06, 2003
Station 069, San Jose, was removed from service on November 22, 2002 due to land use changes. The San Jose CIMIS weather station had been in service since June of 1987 serving the Southern San Francisco Bay Area. The property has changed hands and the weather station equipment has been removed.
Santa Clara Valley Water District (cooperator) is currently looking for a new location to place the equipment.
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#2 ETo Recalculated
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August 06, 2003
Beginning January 8, 2003 siting conditions at CIMIS weather station #002, Five Points, have improved substantially and ETo will again be estimated.
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Name change
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August 06, 2003
The ownership of the land surrounding CIMIS weather station #033, Visalia/ ICI Americas, has changed hands. As a result, the name of the station has been change to Visalia. The new landowner has agreed to continue with the cooperative agreement. Nothing else has changed and no break in data collection will occur as a result of this update.
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#144 Temporarily Discontinued
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May 08, 2003
On October 21, 2002 the Petaluma East CIMIS weather station suffered severe vandalism. The cooperator, City of Petaluma, has been working on obtaining the new equipment and restoring the telephone service. Plans are to move ahead with the rebuilding of the station.
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New station - 183
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April 14, 2003
Owens Lake North, CIMIS weather station #183, has been added to the CIMIS network. The new weather station was installed in mid-December, 2002. Los Angeles Department of Water and Power is the owner of the station. This station will be a non-ETo weather station for research purposes.
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