Ama Dablam | 2011 SW Ridge

A Japan expedition to Ama Dablam in 2011 via SW Ridge, led by Nobuhiko Arita. Summit reached on 1st November 2011. 2 members recorded.

Expedition Details

Field	Value
ID	7746
Imported	2026-03-06 18:04:49.359634
Expedition ID	AMAD11339
Peak ID	AMAD
Year	2011
Season	3
Host Country	1
Route 1	SW Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Nobuhiko Arita
Sponsor	Japanese Ama Dablam Expedition
Success 1	False
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	See route notes
Basecamp Date	2011-10-22
Summit Date	2011-11-01
Summit Time	-
Summit Days	10
Total Days	12
Termination Date	2011-11-03
Termination Reason	7
Termination Notes	Abandoned at 6700m due to exhaustion
High Point (m)	6700
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	1
Summit Members	0
Member Deaths	0
Total Hired	1
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(22/10,4600m),C1(26/10,5400m),C2(27/10,6000m),C3(29/10,6400m),xxx(01/11,6700m)
Route Notes	Approach: Charikot, Singati, Jagat, Simigaon, Beding, Na, Chorolpa, Pachermo, Thame, Tengboche Arita and Phurba Ridar made their summit push on 1 November and reached 6700m; they could not reach to the top due to exhaustion of Arita.
Accidents	-
Achievement	-
Agency	Unique Adventure International (Himal Guides pmt)
Commercial Route	True
Standard Route	False
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2460578
Year	2011
Summit Success	False
O2 Summary	None
Route (lowercase)	sw ridge

Members

Field	Value
ID	57034
Imported	2026-03-06 18:06:05.675609
Expedition ID	AMAD11339
Member ID	01
Peak ID	AMAD
Year	2011
Season	3
First Name	Nobuhiko
Last Name	Arita
Sex	M
Age	0
Birth Date	-
Year of Birth	1947
Calculated Age	64
Citizenship	Japan
Status	Leader
Residence	Japan
Occupation	Retired
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6700
Summit Date 1	2011-11-01
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	4
Summit Term	7
HCN	0
Checksum	2430378
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nobuhiko arita
Year of Birth	1947
Year	2011
Age at Expedition	64
Role	Leader

Field	Value
ID	57035
Imported	2026-03-06 18:06:05.675609
Expedition ID	AMAD11339
Member ID	02
Peak ID	AMAD
Year	2011
Season	3
First Name	Phurba Ridar
Last Name	Bhote
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	53
Citizenship	Nepal
Status	H-A Worker
Residence	Hatiya-1, Makalu-Barun
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	False
Tibetan	True
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6700
Summit Date 1	2011-11-01
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	4
Summit Term	14
HCN	0
Checksum	-1912
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	phurba ridar bhote
Year of Birth	1958
Year	2011
Age at Expedition	53
Role	Hired

2 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Nobuhiko Arita	M	1947	Japan	Leader	Japan	Retired	Details Other expeditions
Phurba Ridar Bhote	M	1958	Nepal	H-A Worker	Hatiya-1, Makalu-Barun	-	Details Other expeditions

References

0 recorded references.